Home / 12,528,139.20-18,792,208.80-4,008,753.60

Finding the Fourth Proportional to 12,528,139.20, 18,792,208.80 and 4,008,753.60

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Solution

The fourth proportional to 12,528,139.20, 18,792,208.80 and 4,008,753.60 is: 6,013,130.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,528,139.20 : 18,792,208.80 = 4,008,753.60 : x
  2. Step 2: Convert to fraction form
    12,528,139.20/18,792,208.80 = 4,008,753.60/x
  3. Step 3: Cross multiply
    12,528,139.20x = 18,792,208.80 × 4,008,753.60
  4. Step 4: Simplify right side
    12,528,139.20x = 75,333,334,678,951.69
  5. Step 5: Solve for x
    x = 75,333,334,678,951.69/12,528,139.20
  6. Step 6: Final answer
    x = 6,013,130.40

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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.