Home / 12,928,517.64-19,398,489.24-6,779,030.88

Finding the Fourth Proportional to 12,928,517.64, 19,398,489.24 and 6,779,030.88

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Solution

The fourth proportional to 12,928,517.64, 19,398,489.24 and 6,779,030.88 is: 10,171,541.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,928,517.64 : 19,398,489.24 = 6,779,030.88 : x
  2. Step 2: Convert to fraction form
    12,928,517.64/19,398,489.24 = 6,779,030.88/x
  3. Step 3: Cross multiply
    12,928,517.64x = 19,398,489.24 × 6,779,030.88
  4. Step 4: Simplify right side
    12,928,517.64x = 131,502,957,583,307.72
  5. Step 5: Solve for x
    x = 131,502,957,583,307.72/12,928,517.64
  6. Step 6: Final answer
    x = 10,171,541.80

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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.