Home / 13,720,500.15-18,934,161.15-7,525,420.89

Finding the Fourth Proportional to 13,720,500.15, 18,934,161.15 and 7,525,420.89

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Solution

The fourth proportional to 13,720,500.15, 18,934,161.15 and 7,525,420.89 is: 10,385,010.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,720,500.15 : 18,934,161.15 = 7,525,420.89 : x
  2. Step 2: Convert to fraction form
    13,720,500.15/18,934,161.15 = 7,525,420.89/x
  3. Step 3: Cross multiply
    13,720,500.15x = 18,934,161.15 × 7,525,420.89
  4. Step 4: Simplify right side
    13,720,500.15x = 142,487,531,852,836.41
  5. Step 5: Solve for x
    x = 142,487,531,852,836.41/13,720,500.15
  6. Step 6: Final answer
    x = 10,385,010.04

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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.