Home / 891,730,448.52-1,230,516,016.38-515,411,414.34

Finding the Fourth Proportional to 891,730,448.52, 1,230,516,016.38 and 515,411,414.34

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Solution

The fourth proportional to 891,730,448.52, 1,230,516,016.38 and 515,411,414.34 is: 711,226,135.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,730,448.52 : 1,230,516,016.38 = 515,411,414.34 : x
  2. Step 2: Convert to fraction form
    891,730,448.52/1,230,516,016.38 = 515,411,414.34/x
  3. Step 3: Cross multiply
    891,730,448.52x = 1,230,516,016.38 × 515,411,414.34
  4. Step 4: Simplify right side
    891,730,448.52x = 634,222,000,370,438,400
  5. Step 5: Solve for x
    x = 634,222,000,370,438,400/891,730,448.52
  6. Step 6: Final answer
    x = 711,226,135.01

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Double scale
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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.