Home / 80,877,422.40-121,316,133.60-50,266,420.80

Finding the Fourth Proportional to 80,877,422.40, 121,316,133.60 and 50,266,420.80

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Solution

The fourth proportional to 80,877,422.40, 121,316,133.60 and 50,266,420.80 is: 75,399,631.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,877,422.40 : 121,316,133.60 = 50,266,420.80 : x
  2. Step 2: Convert to fraction form
    80,877,422.40/121,316,133.60 = 50,266,420.80/x
  3. Step 3: Cross multiply
    80,877,422.40x = 121,316,133.60 × 50,266,420.80
  4. Step 4: Simplify right side
    80,877,422.40x = 6,098,127,821,366,618
  5. Step 5: Solve for x
    x = 6,098,127,821,366,618/80,877,422.40
  6. Step 6: Final answer
    x = 75,399,631.20

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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.