Home / 131,684,934.40-181,723,241.28-72,947,423.68

Finding the Fourth Proportional to 131,684,934.40, 181,723,241.28 and 72,947,423.68

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Solution

The fourth proportional to 131,684,934.40, 181,723,241.28 and 72,947,423.68 is: 100,666,354.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,684,934.40 : 181,723,241.28 = 72,947,423.68 : x
  2. Step 2: Convert to fraction form
    131,684,934.40/181,723,241.28 = 72,947,423.68/x
  3. Step 3: Cross multiply
    131,684,934.40x = 181,723,241.28 × 72,947,423.68
  4. Step 4: Simplify right side
    131,684,934.40x = 13,256,242,274,155,026
  5. Step 5: Solve for x
    x = 13,256,242,274,155,026/131,684,934.40
  6. Step 6: Final answer
    x = 100,666,354.39

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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.