Home / 143,773,330.24-198,385,024.80-81,885,779.20

Finding the Fourth Proportional to 143,773,330.24, 198,385,024.80 and 81,885,779.20

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Solution

The fourth proportional to 143,773,330.24, 198,385,024.80 and 81,885,779.20 is: 112,989,747.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,773,330.24 : 198,385,024.80 = 81,885,779.20 : x
  2. Step 2: Convert to fraction form
    143,773,330.24/198,385,024.80 = 81,885,779.20/x
  3. Step 3: Cross multiply
    143,773,330.24x = 198,385,024.80 × 81,885,779.20
  4. Step 4: Simplify right side
    143,773,330.24x = 16,244,912,337,359,326
  5. Step 5: Solve for x
    x = 16,244,912,337,359,326/143,773,330.24
  6. Step 6: Final answer
    x = 112,989,747.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.