Home / 287,684,788.10-431,569,172.55-93,563,168.90

Finding the Fourth Proportional to 287,684,788.10, 431,569,172.55 and 93,563,168.90

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Solution

The fourth proportional to 287,684,788.10, 431,569,172.55 and 93,563,168.90 is: 140,358,409.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,684,788.10 : 431,569,172.55 = 93,563,168.90 : x
  2. Step 2: Convert to fraction form
    287,684,788.10/431,569,172.55 = 93,563,168.90/x
  3. Step 3: Cross multiply
    287,684,788.10x = 431,569,172.55 × 93,563,168.90
  4. Step 4: Simplify right side
    287,684,788.10x = 40,378,979,383,328,896
  5. Step 5: Solve for x
    x = 40,378,979,383,328,896/287,684,788.10
  6. Step 6: Final answer
    x = 140,358,409.81

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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.