Home / 99,658,033.80-149,508,045.90-42,120,688.20

Finding the Fourth Proportional to 99,658,033.80, 149,508,045.90 and 42,120,688.20

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Solution

The fourth proportional to 99,658,033.80, 149,508,045.90 and 42,120,688.20 is: 63,189,905.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,658,033.80 : 149,508,045.90 = 42,120,688.20 : x
  2. Step 2: Convert to fraction form
    99,658,033.80/149,508,045.90 = 42,120,688.20/x
  3. Step 3: Cross multiply
    99,658,033.80x = 149,508,045.90 × 42,120,688.20
  4. Step 4: Simplify right side
    99,658,033.80x = 6,297,381,784,745,189
  5. Step 5: Solve for x
    x = 6,297,381,784,745,189/99,658,033.80
  6. Step 6: Final answer
    x = 63,189,905.97

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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.