Home / 287,098,757.60-430,134,920.40-174,720,005.60

Finding the Fourth Proportional to 287,098,757.60, 430,134,920.40 and 174,720,005.60

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Solution

The fourth proportional to 287,098,757.60, 430,134,920.40 and 174,720,005.60 is: 261,767,679.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,098,757.60 : 430,134,920.40 = 174,720,005.60 : x
  2. Step 2: Convert to fraction form
    287,098,757.60/430,134,920.40 = 174,720,005.60/x
  3. Step 3: Cross multiply
    287,098,757.60x = 430,134,920.40 × 174,720,005.60
  4. Step 4: Simplify right side
    287,098,757.60x = 75,153,175,701,043,552
  5. Step 5: Solve for x
    x = 75,153,175,701,043,552/287,098,757.60
  6. Step 6: Final answer
    x = 261,767,679.98

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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.