Home / 145,220,212.45-217,894,644.96-76,116,593.08

Finding the Fourth Proportional to 145,220,212.45, 217,894,644.96 and 76,116,593.08

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Solution

The fourth proportional to 145,220,212.45, 217,894,644.96 and 76,116,593.08 is: 114,208,605.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,220,212.45 : 217,894,644.96 = 76,116,593.08 : x
  2. Step 2: Convert to fraction form
    145,220,212.45/217,894,644.96 = 76,116,593.08/x
  3. Step 3: Cross multiply
    145,220,212.45x = 217,894,644.96 × 76,116,593.08
  4. Step 4: Simplify right side
    145,220,212.45x = 16,585,398,024,731,394
  5. Step 5: Solve for x
    x = 16,585,398,024,731,394/145,220,212.45
  6. Step 6: Final answer
    x = 114,208,605.98

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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.