Home / 287,029,747.16-430,194,841.39-148,779,135.40

Finding the Fourth Proportional to 287,029,747.16, 430,194,841.39 and 148,779,135.40

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Solution

The fourth proportional to 287,029,747.16, 430,194,841.39 and 148,779,135.40 is: 222,987,398.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,029,747.16 : 430,194,841.39 = 148,779,135.40 : x
  2. Step 2: Convert to fraction form
    287,029,747.16/430,194,841.39 = 148,779,135.40/x
  3. Step 3: Cross multiply
    287,029,747.16x = 430,194,841.39 × 148,779,135.40
  4. Step 4: Simplify right side
    287,029,747.16x = 64,004,016,552,649,464
  5. Step 5: Solve for x
    x = 64,004,016,552,649,464/287,029,747.16
  6. Step 6: Final answer
    x = 222,987,398.30

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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.