Home / 153,412,136.55-211,656,232.98-87,316,080.66

Finding the Fourth Proportional to 153,412,136.55, 211,656,232.98 and 87,316,080.66

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Solution

The fourth proportional to 153,412,136.55, 211,656,232.98 and 87,316,080.66 is: 120,466,301.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,412,136.55 : 211,656,232.98 = 87,316,080.66 : x
  2. Step 2: Convert to fraction form
    153,412,136.55/211,656,232.98 = 87,316,080.66/x
  3. Step 3: Cross multiply
    153,412,136.55x = 211,656,232.98 × 87,316,080.66
  4. Step 4: Simplify right side
    153,412,136.55x = 18,480,992,711,073,432
  5. Step 5: Solve for x
    x = 18,480,992,711,073,432/153,412,136.55
  6. Step 6: Final answer
    x = 120,466,301.60

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