Home / 72,675,789.80-109,013,684.70-56,551,476.20

Finding the Fourth Proportional to 72,675,789.80, 109,013,684.70 and 56,551,476.20

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Solution

The fourth proportional to 72,675,789.80, 109,013,684.70 and 56,551,476.20 is: 84,827,214.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,675,789.80 : 109,013,684.70 = 56,551,476.20 : x
  2. Step 2: Convert to fraction form
    72,675,789.80/109,013,684.70 = 56,551,476.20/x
  3. Step 3: Cross multiply
    72,675,789.80x = 109,013,684.70 × 56,551,476.20
  4. Step 4: Simplify right side
    72,675,789.80x = 6,164,884,795,786,355
  5. Step 5: Solve for x
    x = 6,164,884,795,786,355/72,675,789.80
  6. Step 6: Final answer
    x = 84,827,214.30

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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.