Home / 143,487,817.40-215,231,726.10-99,484,502.60

Finding the Fourth Proportional to 143,487,817.40, 215,231,726.10 and 99,484,502.60

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Solution

The fourth proportional to 143,487,817.40, 215,231,726.10 and 99,484,502.60 is: 149,226,753.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,487,817.40 : 215,231,726.10 = 99,484,502.60 : x
  2. Step 2: Convert to fraction form
    143,487,817.40/215,231,726.10 = 99,484,502.60/x
  3. Step 3: Cross multiply
    143,487,817.40x = 215,231,726.10 × 99,484,502.60
  4. Step 4: Simplify right side
    143,487,817.40x = 21,412,221,214,797,936
  5. Step 5: Solve for x
    x = 21,412,221,214,797,936/143,487,817.40
  6. Step 6: Final answer
    x = 149,226,753.90

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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.