Home / 152,989,962.10-211,119,991.05-83,373,839.80

Finding the Fourth Proportional to 152,989,962.10, 211,119,991.05 and 83,373,839.80

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Solution

The fourth proportional to 152,989,962.10, 211,119,991.05 and 83,373,839.80 is: 115,052,543.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,989,962.10 : 211,119,991.05 = 83,373,839.80 : x
  2. Step 2: Convert to fraction form
    152,989,962.10/211,119,991.05 = 83,373,839.80/x
  3. Step 3: Cross multiply
    152,989,962.10x = 211,119,991.05 × 83,373,839.80
  4. Step 4: Simplify right side
    152,989,962.10x = 17,601,884,312,380,134
  5. Step 5: Solve for x
    x = 17,601,884,312,380,134/152,989,962.10
  6. Step 6: Final answer
    x = 115,052,543.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.