Home / 13,437,439.20-20,156,158.80-7,369,826.40

Finding the Fourth Proportional to 13,437,439.20, 20,156,158.80 and 7,369,826.40

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Solution

The fourth proportional to 13,437,439.20, 20,156,158.80 and 7,369,826.40 is: 11,054,739.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,437,439.20 : 20,156,158.80 = 7,369,826.40 : x
  2. Step 2: Convert to fraction form
    13,437,439.20/20,156,158.80 = 7,369,826.40/x
  3. Step 3: Cross multiply
    13,437,439.20x = 20,156,158.80 × 7,369,826.40
  4. Step 4: Simplify right side
    13,437,439.20x = 148,547,391,246,832.34
  5. Step 5: Solve for x
    x = 148,547,391,246,832.34/13,437,439.20
  6. Step 6: Final answer
    x = 11,054,739.60

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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.