Home / 287,029,133.92-430,193,921.67-148,778,522.15

Finding the Fourth Proportional to 287,029,133.92, 430,193,921.67 and 148,778,522.15

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Solution

The fourth proportional to 287,029,133.92, 430,193,921.67 and 148,778,522.15 is: 222,986,478.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,029,133.92 : 430,193,921.67 = 148,778,522.15 : x
  2. Step 2: Convert to fraction form
    287,029,133.92/430,193,921.67 = 148,778,522.15/x
  3. Step 3: Cross multiply
    287,029,133.92x = 430,193,921.67 × 148,778,522.15
  4. Step 4: Simplify right side
    287,029,133.92x = 64,003,615,901,824,496
  5. Step 5: Solve for x
    x = 64,003,615,901,824,496/287,029,133.92
  6. Step 6: Final answer
    x = 222,986,478.85

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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.