Home / 127,172,011.24-175,487,369.70-72,167,867.56

Finding the Fourth Proportional to 127,172,011.24, 175,487,369.70 and 72,167,867.56

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Solution

The fourth proportional to 127,172,011.24, 175,487,369.70 and 72,167,867.56 is: 99,585,979.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,172,011.24 : 175,487,369.70 = 72,167,867.56 : x
  2. Step 2: Convert to fraction form
    127,172,011.24/175,487,369.70 = 72,167,867.56/x
  3. Step 3: Cross multiply
    127,172,011.24x = 175,487,369.70 × 72,167,867.56
  4. Step 4: Simplify right side
    127,172,011.24x = 12,664,549,254,962,356
  5. Step 5: Solve for x
    x = 12,664,549,254,962,356/127,172,011.24
  6. Step 6: Final answer
    x = 99,585,979.11

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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.