Home / 145,655,118.10-218,482,677.15-138,936,654.10

Finding the Fourth Proportional to 145,655,118.10, 218,482,677.15 and 138,936,654.10

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Solution

The fourth proportional to 145,655,118.10, 218,482,677.15 and 138,936,654.10 is: 208,404,981.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,655,118.10 : 218,482,677.15 = 138,936,654.10 : x
  2. Step 2: Convert to fraction form
    145,655,118.10/218,482,677.15 = 138,936,654.10/x
  3. Step 3: Cross multiply
    145,655,118.10x = 218,482,677.15 × 138,936,654.10
  4. Step 4: Simplify right side
    145,655,118.10x = 30,355,252,142,031,524
  5. Step 5: Solve for x
    x = 30,355,252,142,031,524/145,655,118.10
  6. Step 6: Final answer
    x = 208,404,981.15

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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.