Home / 85,154,196.30-127,731,294.45-80,115,348.30

Finding the Fourth Proportional to 85,154,196.30, 127,731,294.45 and 80,115,348.30

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Solution

The fourth proportional to 85,154,196.30, 127,731,294.45 and 80,115,348.30 is: 120,173,022.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,154,196.30 : 127,731,294.45 = 80,115,348.30 : x
  2. Step 2: Convert to fraction form
    85,154,196.30/127,731,294.45 = 80,115,348.30/x
  3. Step 3: Cross multiply
    85,154,196.30x = 127,731,294.45 × 80,115,348.30
  4. Step 4: Simplify right side
    85,154,196.30x = 10,233,237,143,671,606
  5. Step 5: Solve for x
    x = 10,233,237,143,671,606/85,154,196.30
  6. Step 6: Final answer
    x = 120,173,022.45

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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.