Home / 287,684,768.60-431,569,143.30-93,563,149.40

Finding the Fourth Proportional to 287,684,768.60, 431,569,143.30 and 93,563,149.40

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Solution

The fourth proportional to 287,684,768.60, 431,569,143.30 and 93,563,149.40 is: 140,358,380.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,684,768.60 : 431,569,143.30 = 93,563,149.40 : x
  2. Step 2: Convert to fraction form
    287,684,768.60/431,569,143.30 = 93,563,149.40/x
  3. Step 3: Cross multiply
    287,684,768.60x = 431,569,143.30 × 93,563,149.40
  4. Step 4: Simplify right side
    287,684,768.60x = 40,378,968,231,007,912
  5. Step 5: Solve for x
    x = 40,378,968,231,007,912/287,684,768.60
  6. Step 6: Final answer
    x = 140,358,380.55

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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.