Home / 239,152,502.70-358,728,754.05-218,745,168.30

Finding the Fourth Proportional to 239,152,502.70, 358,728,754.05 and 218,745,168.30

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Solution

The fourth proportional to 239,152,502.70, 358,728,754.05 and 218,745,168.30 is: 328,117,752.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,152,502.70 : 358,728,754.05 = 218,745,168.30 : x
  2. Step 2: Convert to fraction form
    239,152,502.70/358,728,754.05 = 218,745,168.30/x
  3. Step 3: Cross multiply
    239,152,502.70x = 358,728,754.05 × 218,745,168.30
  4. Step 4: Simplify right side
    239,152,502.70x = 78,470,181,678,716,560
  5. Step 5: Solve for x
    x = 78,470,181,678,716,560/239,152,502.70
  6. Step 6: Final answer
    x = 328,117,752.45

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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.