Home / 25,920,121.60-38,880,182.40-7,966,892.80

Finding the Fourth Proportional to 25,920,121.60, 38,880,182.40 and 7,966,892.80

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Solution

The fourth proportional to 25,920,121.60, 38,880,182.40 and 7,966,892.80 is: 11,950,339.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,920,121.60 : 38,880,182.40 = 7,966,892.80 : x
  2. Step 2: Convert to fraction form
    25,920,121.60/38,880,182.40 = 7,966,892.80/x
  3. Step 3: Cross multiply
    25,920,121.60x = 38,880,182.40 × 7,966,892.80
  4. Step 4: Simplify right side
    25,920,121.60x = 309,754,245,225,246.69
  5. Step 5: Solve for x
    x = 309,754,245,225,246.69/25,920,121.60
  6. Step 6: Final answer
    x = 11,950,339.20

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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.