Home / 99,636,989.68-149,454,595.14-31,479,679

Finding the Fourth Proportional to 99,636,989.68, 149,454,595.14 and 31,479,679

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Solution

The fourth proportional to 99,636,989.68, 149,454,595.14 and 31,479,679 is: 47,219,237.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,636,989.68 : 149,454,595.14 = 31,479,679 : x
  2. Step 2: Convert to fraction form
    99,636,989.68/149,454,595.14 = 31,479,679/x
  3. Step 3: Cross multiply
    99,636,989.68x = 149,454,595.14 × 31,479,679
  4. Step 4: Simplify right side
    99,636,989.68x = 4,704,782,680,082,160
  5. Step 5: Solve for x
    x = 4,704,782,680,082,160/99,636,989.68
  6. Step 6: Final answer
    x = 47,219,237.51

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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.