Home / 1,113,455,189.45-1,670,872,484.91-647,335,990.23

Finding the Fourth Proportional to 1,113,455,189.45, 1,670,872,484.91 and 647,335,990.23

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Solution

The fourth proportional to 1,113,455,189.45, 1,670,872,484.91 and 647,335,990.23 is: 971,404,960.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,113,455,189.45 : 1,670,872,484.91 = 647,335,990.23 : x
  2. Step 2: Convert to fraction form
    1,113,455,189.45/1,670,872,484.91 = 647,335,990.23/x
  3. Step 3: Cross multiply
    1,113,455,189.45x = 1,670,872,484.91 × 647,335,990.23
  4. Step 4: Simplify right side
    1,113,455,189.45x = 1,081,615,894,567,275,648
  5. Step 5: Solve for x
    x = 1,081,615,894,567,275,648/1,113,455,189.45
  6. Step 6: Final answer
    x = 971,404,960.72

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.