Home / 178,421,050.53-267,686,376.77-85,167,018.76

Finding the Fourth Proportional to 178,421,050.53, 267,686,376.77 and 85,167,018.76

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Solution

The fourth proportional to 178,421,050.53, 267,686,376.77 and 85,167,018.76 is: 127,776,686.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,421,050.53 : 267,686,376.77 = 85,167,018.76 : x
  2. Step 2: Convert to fraction form
    178,421,050.53/267,686,376.77 = 85,167,018.76/x
  3. Step 3: Cross multiply
    178,421,050.53x = 267,686,376.77 × 85,167,018.76
  4. Step 4: Simplify right side
    178,421,050.53x = 22,798,050,672,861,436
  5. Step 5: Solve for x
    x = 22,798,050,672,861,436/178,421,050.53
  6. Step 6: Final answer
    x = 127,776,686.69

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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.