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Finding the Fourth Proportional to 178,285,421.40, 267,428,132.10 and 178,285,421.40

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Solution

The fourth proportional to 178,285,421.40, 267,428,132.10 and 178,285,421.40 is: 267,428,132.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,285,421.40 : 267,428,132.10 = 178,285,421.40 : x
  2. Step 2: Convert to fraction form
    178,285,421.40/267,428,132.10 = 178,285,421.40/x
  3. Step 3: Cross multiply
    178,285,421.40x = 267,428,132.10 × 178,285,421.40
  4. Step 4: Simplify right side
    178,285,421.40x = 47,678,537,225,663,368
  5. Step 5: Solve for x
    x = 47,678,537,225,663,368/178,285,421.40
  6. Step 6: Final answer
    x = 267,428,132.10

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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.