Home / 287,684,785.10-431,569,168.05-93,563,165.90

Finding the Fourth Proportional to 287,684,785.10, 431,569,168.05 and 93,563,165.90

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Solution

The fourth proportional to 287,684,785.10, 431,569,168.05 and 93,563,165.90 is: 140,358,405.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,684,785.10 : 431,569,168.05 = 93,563,165.90 : x
  2. Step 2: Convert to fraction form
    287,684,785.10/431,569,168.05 = 93,563,165.90/x
  3. Step 3: Cross multiply
    287,684,785.10x = 431,569,168.05 × 93,563,165.90
  4. Step 4: Simplify right side
    287,684,785.10x = 40,378,977,667,587,136
  5. Step 5: Solve for x
    x = 40,378,977,667,587,136/287,684,785.10
  6. Step 6: Final answer
    x = 140,358,405.31

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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.