Home / 1,112,292,319.80-1,668,438,479.70-646,750,003.80

Finding the Fourth Proportional to 1,112,292,319.80, 1,668,438,479.70 and 646,750,003.80

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Solution

The fourth proportional to 1,112,292,319.80, 1,668,438,479.70 and 646,750,003.80 is: 970,125,005.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,112,292,319.80 : 1,668,438,479.70 = 646,750,003.80 : x
  2. Step 2: Convert to fraction form
    1,112,292,319.80/1,668,438,479.70 = 646,750,003.80/x
  3. Step 3: Cross multiply
    1,112,292,319.80x = 1,668,438,479.70 × 646,750,003.80
  4. Step 4: Simplify right side
    1,112,292,319.80x = 1,079,062,593,086,041,216
  5. Step 5: Solve for x
    x = 1,079,062,593,086,041,216/1,112,292,319.80
  6. Step 6: Final answer
    x = 970,125,005.70

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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.