Home / 145,539,200.80-218,308,801.20-72,767,213.20

Finding the Fourth Proportional to 145,539,200.80, 218,308,801.20 and 72,767,213.20

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Solution

The fourth proportional to 145,539,200.80, 218,308,801.20 and 72,767,213.20 is: 109,150,819.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,539,200.80 : 218,308,801.20 = 72,767,213.20 : x
  2. Step 2: Convert to fraction form
    145,539,200.80/218,308,801.20 = 72,767,213.20/x
  3. Step 3: Cross multiply
    145,539,200.80x = 218,308,801.20 × 72,767,213.20
  4. Step 4: Simplify right side
    145,539,200.80x = 15,885,723,080,356,816
  5. Step 5: Solve for x
    x = 15,885,723,080,356,816/145,539,200.80
  6. Step 6: Final answer
    x = 109,150,819.80

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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.