Home / 287,029,661.30-430,194,712.65-148,779,049.55

Finding the Fourth Proportional to 287,029,661.30, 430,194,712.65 and 148,779,049.55

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Solution

The fourth proportional to 287,029,661.30, 430,194,712.65 and 148,779,049.55 is: 222,987,269.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,029,661.30 : 430,194,712.65 = 148,779,049.55 : x
  2. Step 2: Convert to fraction form
    287,029,661.30/430,194,712.65 = 148,779,049.55/x
  3. Step 3: Cross multiply
    287,029,661.30x = 430,194,712.65 × 148,779,049.55
  4. Step 4: Simplify right side
    287,029,661.30x = 64,003,960,469,502,360
  5. Step 5: Solve for x
    x = 64,003,960,469,502,360/287,029,661.30
  6. Step 6: Final answer
    x = 222,987,269.61

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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.