Home / 12,129,426.60-18,194,139.90-4,937,258.40

Finding the Fourth Proportional to 12,129,426.60, 18,194,139.90 and 4,937,258.40

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Solution

The fourth proportional to 12,129,426.60, 18,194,139.90 and 4,937,258.40 is: 7,405,887.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,129,426.60 : 18,194,139.90 = 4,937,258.40 : x
  2. Step 2: Convert to fraction form
    12,129,426.60/18,194,139.90 = 4,937,258.40/x
  3. Step 3: Cross multiply
    12,129,426.60x = 18,194,139.90 × 4,937,258.40
  4. Step 4: Simplify right side
    12,129,426.60x = 89,829,170,052,050.16
  5. Step 5: Solve for x
    x = 89,829,170,052,050.16/12,129,426.60
  6. Step 6: Final answer
    x = 7,405,887.60

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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.