Home / 15,314,678.73-21,134,398.37-8,439,406.83

Finding the Fourth Proportional to 15,314,678.73, 21,134,398.37 and 8,439,406.83

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Solution

The fourth proportional to 15,314,678.73, 21,134,398.37 and 8,439,406.83 is: 11,646,459.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,314,678.73 : 21,134,398.37 = 8,439,406.83 : x
  2. Step 2: Convert to fraction form
    15,314,678.73/21,134,398.37 = 8,439,406.83/x
  3. Step 3: Cross multiply
    15,314,678.73x = 21,134,398.37 × 8,439,406.83
  4. Step 4: Simplify right side
    15,314,678.73x = 178,361,785,909,521.81
  5. Step 5: Solve for x
    x = 178,361,785,909,521.81/15,314,678.73
  6. Step 6: Final answer
    x = 11,646,459.52

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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.