Home / 12,130,617.28-18,202,223.52-4,947,421.12

Finding the Fourth Proportional to 12,130,617.28, 18,202,223.52 and 4,947,421.12

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Solution

The fourth proportional to 12,130,617.28, 18,202,223.52 and 4,947,421.12 is: 7,423,700.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,130,617.28 : 18,202,223.52 = 4,947,421.12 : x
  2. Step 2: Convert to fraction form
    12,130,617.28/18,202,223.52 = 4,947,421.12/x
  3. Step 3: Cross multiply
    12,130,617.28x = 18,202,223.52 × 4,947,421.12
  4. Step 4: Simplify right side
    12,130,617.28x = 90,054,065,073,808.75
  5. Step 5: Solve for x
    x = 90,054,065,073,808.75/12,130,617.28
  6. Step 6: Final answer
    x = 7,423,700.13

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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.