Home / 730,374,104.20-1,007,328,560.26-642,079,315.40

Finding the Fourth Proportional to 730,374,104.20, 1,007,328,560.26 and 642,079,315.40

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Solution

The fourth proportional to 730,374,104.20, 1,007,328,560.26 and 642,079,315.40 is: 885,552,799.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    730,374,104.20 : 1,007,328,560.26 = 642,079,315.40 : x
  2. Step 2: Convert to fraction form
    730,374,104.20/1,007,328,560.26 = 642,079,315.40/x
  3. Step 3: Cross multiply
    730,374,104.20x = 1,007,328,560.26 × 642,079,315.40
  4. Step 4: Simplify right side
    730,374,104.20x = 646,784,832,354,608,384
  5. Step 5: Solve for x
    x = 646,784,832,354,608,384/730,374,104.20
  6. Step 6: Final answer
    x = 885,552,799.09

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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.