Home / 18,216,864.40-25,139,211.80-9,956,921.90

Finding the Fourth Proportional to 18,216,864.40, 25,139,211.80 and 9,956,921.90

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Solution

The fourth proportional to 18,216,864.40, 25,139,211.80 and 9,956,921.90 is: 13,740,518.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,216,864.40 : 25,139,211.80 = 9,956,921.90 : x
  2. Step 2: Convert to fraction form
    18,216,864.40/25,139,211.80 = 9,956,921.90/x
  3. Step 3: Cross multiply
    18,216,864.40x = 25,139,211.80 × 9,956,921.90
  4. Step 4: Simplify right side
    18,216,864.40x = 250,309,168,520,158.44
  5. Step 5: Solve for x
    x = 250,309,168,520,158.44/18,216,864.40
  6. Step 6: Final answer
    x = 13,740,518.84

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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.