Home / 124,403,423.71-171,710,871.02-72,209,274.70

Finding the Fourth Proportional to 124,403,423.71, 171,710,871.02 and 72,209,274.70

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Solution

The fourth proportional to 124,403,423.71, 171,710,871.02 and 72,209,274.70 is: 99,668,619.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,403,423.71 : 171,710,871.02 = 72,209,274.70 : x
  2. Step 2: Convert to fraction form
    124,403,423.71/171,710,871.02 = 72,209,274.70/x
  3. Step 3: Cross multiply
    124,403,423.71x = 171,710,871.02 × 72,209,274.70
  4. Step 4: Simplify right side
    124,403,423.71x = 12,399,117,454,098,402
  5. Step 5: Solve for x
    x = 12,399,117,454,098,402/124,403,423.71
  6. Step 6: Final answer
    x = 99,668,619.11

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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.