Home / 99,781,666.80-149,798,471.40-53,760,188.40

Finding the Fourth Proportional to 99,781,666.80, 149,798,471.40 and 53,760,188.40

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Solution

The fourth proportional to 99,781,666.80, 149,798,471.40 and 53,760,188.40 is: 80,708,153.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,781,666.80 : 149,798,471.40 = 53,760,188.40 : x
  2. Step 2: Convert to fraction form
    99,781,666.80/149,798,471.40 = 53,760,188.40/x
  3. Step 3: Cross multiply
    99,781,666.80x = 149,798,471.40 × 53,760,188.40
  4. Step 4: Simplify right side
    99,781,666.80x = 8,053,194,044,496,012
  5. Step 5: Solve for x
    x = 8,053,194,044,496,012/99,781,666.80
  6. Step 6: Final answer
    x = 80,708,153.14

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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.