Home / 8,640,147.30-12,960,220.95-5,784,800.10

Finding the Fourth Proportional to 8,640,147.30, 12,960,220.95 and 5,784,800.10

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Solution

The fourth proportional to 8,640,147.30, 12,960,220.95 and 5,784,800.10 is: 8,677,200.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,640,147.30 : 12,960,220.95 = 5,784,800.10 : x
  2. Step 2: Convert to fraction form
    8,640,147.30/12,960,220.95 = 5,784,800.10/x
  3. Step 3: Cross multiply
    8,640,147.30x = 12,960,220.95 × 5,784,800.10
  4. Step 4: Simplify right side
    8,640,147.30x = 74,972,287,447,582.08
  5. Step 5: Solve for x
    x = 74,972,287,447,582.08/8,640,147.30
  6. Step 6: Final answer
    x = 8,677,200.15

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1.5x scale

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.