Home / 14,507,429.76-20,019,974.40-7,980,677.76

Finding the Fourth Proportional to 14,507,429.76, 20,019,974.40 and 7,980,677.76

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Solution

The fourth proportional to 14,507,429.76, 20,019,974.40 and 7,980,677.76 is: 11,013,182.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,507,429.76 : 20,019,974.40 = 7,980,677.76 : x
  2. Step 2: Convert to fraction form
    14,507,429.76/20,019,974.40 = 7,980,677.76/x
  3. Step 3: Cross multiply
    14,507,429.76x = 20,019,974.40 × 7,980,677.76
  4. Step 4: Simplify right side
    14,507,429.76x = 159,772,964,449,849.31
  5. Step 5: Solve for x
    x = 159,772,964,449,849.31/14,507,429.76
  6. Step 6: Final answer
    x = 11,013,182.01

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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.