Home / 12,238,477.20-18,357,715.80-4,260,301.20

Finding the Fourth Proportional to 12,238,477.20, 18,357,715.80 and 4,260,301.20

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Solution

The fourth proportional to 12,238,477.20, 18,357,715.80 and 4,260,301.20 is: 6,390,451.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,238,477.20 : 18,357,715.80 = 4,260,301.20 : x
  2. Step 2: Convert to fraction form
    12,238,477.20/18,357,715.80 = 4,260,301.20/x
  3. Step 3: Cross multiply
    12,238,477.20x = 18,357,715.80 × 4,260,301.20
  4. Step 4: Simplify right side
    12,238,477.20x = 78,209,398,651,998.97
  5. Step 5: Solve for x
    x = 78,209,398,651,998.97/12,238,477.20
  6. Step 6: Final answer
    x = 6,390,451.80

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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.