Home / 13,869,066.78-20,807,437.95-5,785,848.90

Finding the Fourth Proportional to 13,869,066.78, 20,807,437.95 and 5,785,848.90

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Solution

The fourth proportional to 13,869,066.78, 20,807,437.95 and 5,785,848.90 is: 8,680,374.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,869,066.78 : 20,807,437.95 = 5,785,848.90 : x
  2. Step 2: Convert to fraction form
    13,869,066.78/20,807,437.95 = 5,785,848.90/x
  3. Step 3: Cross multiply
    13,869,066.78x = 20,807,437.95 × 5,785,848.90
  4. Step 4: Simplify right side
    13,869,066.78x = 120,388,691,974,825.77
  5. Step 5: Solve for x
    x = 120,388,691,974,825.77/13,869,066.78
  6. Step 6: Final answer
    x = 8,680,374.38

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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.