Home / 99,855,111.60-149,782,667.40-89,013,715.20

Finding the Fourth Proportional to 99,855,111.60, 149,782,667.40 and 89,013,715.20

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Solution

The fourth proportional to 99,855,111.60, 149,782,667.40 and 89,013,715.20 is: 133,520,572.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,855,111.60 : 149,782,667.40 = 89,013,715.20 : x
  2. Step 2: Convert to fraction form
    99,855,111.60/149,782,667.40 = 89,013,715.20/x
  3. Step 3: Cross multiply
    99,855,111.60x = 149,782,667.40 × 89,013,715.20
  4. Step 4: Simplify right side
    99,855,111.60x = 13,332,711,697,839,926
  5. Step 5: Solve for x
    x = 13,332,711,697,839,926/99,855,111.60
  6. Step 6: Final answer
    x = 133,520,572.80

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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.