Home / 143,145,617.45-214,781,411.78-66,429,156.65

Finding the Fourth Proportional to 143,145,617.45, 214,781,411.78 and 66,429,156.65

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Solution

The fourth proportional to 143,145,617.45, 214,781,411.78 and 66,429,156.65 is: 99,672,964.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,145,617.45 : 214,781,411.78 = 66,429,156.65 : x
  2. Step 2: Convert to fraction form
    143,145,617.45/214,781,411.78 = 66,429,156.65/x
  3. Step 3: Cross multiply
    143,145,617.45x = 214,781,411.78 × 66,429,156.65
  4. Step 4: Simplify right side
    143,145,617.45x = 14,267,748,048,309,630
  5. Step 5: Solve for x
    x = 14,267,748,048,309,630/143,145,617.45
  6. Step 6: Final answer
    x = 99,672,964.51

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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.