Home / 145,729,384.20-218,678,057.10-54,918,145.80

Finding the Fourth Proportional to 145,729,384.20, 218,678,057.10 and 54,918,145.80

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Solution

The fourth proportional to 145,729,384.20, 218,678,057.10 and 54,918,145.80 is: 82,408,866.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,729,384.20 : 218,678,057.10 = 54,918,145.80 : x
  2. Step 2: Convert to fraction form
    145,729,384.20/218,678,057.10 = 54,918,145.80/x
  3. Step 3: Cross multiply
    145,729,384.20x = 218,678,057.10 × 54,918,145.80
  4. Step 4: Simplify right side
    145,729,384.20x = 12,009,393,423,078,524
  5. Step 5: Solve for x
    x = 12,009,393,423,078,524/145,729,384.20
  6. Step 6: Final answer
    x = 82,408,866.88

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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.