Home / 287,029,746.66-430,194,840.64-148,779,134.90

Finding the Fourth Proportional to 287,029,746.66, 430,194,840.64 and 148,779,134.90

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Solution

The fourth proportional to 287,029,746.66, 430,194,840.64 and 148,779,134.90 is: 222,987,397.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,029,746.66 : 430,194,840.64 = 148,779,134.90 : x
  2. Step 2: Convert to fraction form
    287,029,746.66/430,194,840.64 = 148,779,134.90/x
  3. Step 3: Cross multiply
    287,029,746.66x = 430,194,840.64 × 148,779,134.90
  4. Step 4: Simplify right side
    287,029,746.66x = 64,004,016,226,339,640
  5. Step 5: Solve for x
    x = 64,004,016,226,339,640/287,029,746.66
  6. Step 6: Final answer
    x = 222,987,397.55

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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.