Home / 936,282,044.29-1,292,069,197.40-518,621,233.72

Finding the Fourth Proportional to 936,282,044.29, 1,292,069,197.40 and 518,621,233.72

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Solution

The fourth proportional to 936,282,044.29, 1,292,069,197.40 and 518,621,233.72 is: 715,697,289.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    936,282,044.29 : 1,292,069,197.40 = 518,621,233.72 : x
  2. Step 2: Convert to fraction form
    936,282,044.29/1,292,069,197.40 = 518,621,233.72/x
  3. Step 3: Cross multiply
    936,282,044.29x = 1,292,069,197.40 × 518,621,233.72
  4. Step 4: Simplify right side
    936,282,044.29x = 670,094,521,207,198,336
  5. Step 5: Solve for x
    x = 670,094,521,207,198,336/936,282,044.29
  6. Step 6: Final answer
    x = 715,697,289.39

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Half scale
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Double scale
Find fourth proportional to 936,282,045.29, 1,292,069,198.78 and 518,621,234.72
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.