Home / 287,280,069.10-430,920,103.65-282,745,105.90

Finding the Fourth Proportional to 287,280,069.10, 430,920,103.65 and 282,745,105.90

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Solution

The fourth proportional to 287,280,069.10, 430,920,103.65 and 282,745,105.90 is: 424,117,658.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,280,069.10 : 430,920,103.65 = 282,745,105.90 : x
  2. Step 2: Convert to fraction form
    287,280,069.10/430,920,103.65 = 282,745,105.90/x
  3. Step 3: Cross multiply
    287,280,069.10x = 430,920,103.65 × 282,745,105.90
  4. Step 4: Simplify right side
    287,280,069.10x = 121,840,550,340,958,208
  5. Step 5: Solve for x
    x = 121,840,550,340,958,208/287,280,069.10
  6. Step 6: Final answer
    x = 424,117,658.85

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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.