Home / 287,658,175.20-430,991,251.20-133,989,057.60

Finding the Fourth Proportional to 287,658,175.20, 430,991,251.20 and 133,989,057.60

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Solution

The fourth proportional to 287,658,175.20, 430,991,251.20 and 133,989,057.60 is: 200,752,547.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,658,175.20 : 430,991,251.20 = 133,989,057.60 : x
  2. Step 2: Convert to fraction form
    287,658,175.20/430,991,251.20 = 133,989,057.60/x
  3. Step 3: Cross multiply
    287,658,175.20x = 430,991,251.20 × 133,989,057.60
  4. Step 4: Simplify right side
    287,658,175.20x = 57,748,111,582,132,864
  5. Step 5: Solve for x
    x = 57,748,111,582,132,864/287,658,175.20
  6. Step 6: Final answer
    x = 200,752,547.85

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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.