Home / 82,495,867.80-123,838,280.10-48,436,404.60

Finding the Fourth Proportional to 82,495,867.80, 123,838,280.10 and 48,436,404.60

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Solution

The fourth proportional to 82,495,867.80, 123,838,280.10 and 48,436,404.60 is: 72,710,078.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,495,867.80 : 123,838,280.10 = 48,436,404.60 : x
  2. Step 2: Convert to fraction form
    82,495,867.80/123,838,280.10 = 48,436,404.60/x
  3. Step 3: Cross multiply
    82,495,867.80x = 123,838,280.10 × 48,436,404.60
  4. Step 4: Simplify right side
    82,495,867.80x = 5,998,281,039,891,728
  5. Step 5: Solve for x
    x = 5,998,281,039,891,728/82,495,867.80
  6. Step 6: Final answer
    x = 72,710,078.70

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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.