Home / 14,506,948.28-20,018,956.20-7,980,163.76

Finding the Fourth Proportional to 14,506,948.28, 20,018,956.20 and 7,980,163.76

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Solution

The fourth proportional to 14,506,948.28, 20,018,956.20 and 7,980,163.76 is: 11,012,278.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,506,948.28 : 20,018,956.20 = 7,980,163.76 : x
  2. Step 2: Convert to fraction form
    14,506,948.28/20,018,956.20 = 7,980,163.76/x
  3. Step 3: Cross multiply
    14,506,948.28x = 20,018,956.20 × 7,980,163.76
  4. Step 4: Simplify right side
    14,506,948.28x = 159,754,548,780,267.31
  5. Step 5: Solve for x
    x = 159,754,548,780,267.31/14,506,948.28
  6. Step 6: Final answer
    x = 11,012,278.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.