Home / 194,210,972.10-291,428,432.55-73,129,320.90

Finding the Fourth Proportional to 194,210,972.10, 291,428,432.55 and 73,129,320.90

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Solution

The fourth proportional to 194,210,972.10, 291,428,432.55 and 73,129,320.90 is: 109,736,144.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,210,972.10 : 291,428,432.55 = 73,129,320.90 : x
  2. Step 2: Convert to fraction form
    194,210,972.10/291,428,432.55 = 73,129,320.90/x
  3. Step 3: Cross multiply
    194,210,972.10x = 291,428,432.55 × 73,129,320.90
  4. Step 4: Simplify right side
    194,210,972.10x = 21,311,963,363,332,956
  5. Step 5: Solve for x
    x = 21,311,963,363,332,956/194,210,972.10
  6. Step 6: Final answer
    x = 109,736,144.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.