Home / 287,535,108.15-430,863,781.55-170,720,432.19

Finding the Fourth Proportional to 287,535,108.15, 430,863,781.55 and 170,720,432.19

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Solution

The fourth proportional to 287,535,108.15, 430,863,781.55 and 170,720,432.19 is: 255,820,068.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,535,108.15 : 430,863,781.55 = 170,720,432.19 : x
  2. Step 2: Convert to fraction form
    287,535,108.15/430,863,781.55 = 170,720,432.19/x
  3. Step 3: Cross multiply
    287,535,108.15x = 430,863,781.55 × 170,720,432.19
  4. Step 4: Simplify right side
    287,535,108.15x = 73,557,251,000,380,144
  5. Step 5: Solve for x
    x = 73,557,251,000,380,144/287,535,108.15
  6. Step 6: Final answer
    x = 255,820,068.28

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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.