Home / 208,049,432.70-287,301,209.67-155,747,667.90

Finding the Fourth Proportional to 208,049,432.70, 287,301,209.67 and 155,747,667.90

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Solution

The fourth proportional to 208,049,432.70, 287,301,209.67 and 155,747,667.90 is: 215,076,257.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,049,432.70 : 287,301,209.67 = 155,747,667.90 : x
  2. Step 2: Convert to fraction form
    208,049,432.70/287,301,209.67 = 155,747,667.90/x
  3. Step 3: Cross multiply
    208,049,432.70x = 287,301,209.67 × 155,747,667.90
  4. Step 4: Simplify right side
    208,049,432.70x = 44,746,493,390,951,432
  5. Step 5: Solve for x
    x = 44,746,493,390,951,432/208,049,432.70
  6. Step 6: Final answer
    x = 215,076,257.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.