Home / 9,779,630.56-13,495,215.07-5,428,374.34

Finding the Fourth Proportional to 9,779,630.56, 13,495,215.07 and 5,428,374.34

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Solution

The fourth proportional to 9,779,630.56, 13,495,215.07 and 5,428,374.34 is: 7,490,781.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,779,630.56 : 13,495,215.07 = 5,428,374.34 : x
  2. Step 2: Convert to fraction form
    9,779,630.56/13,495,215.07 = 5,428,374.34/x
  3. Step 3: Cross multiply
    9,779,630.56x = 13,495,215.07 × 5,428,374.34
  4. Step 4: Simplify right side
    9,779,630.56x = 73,257,079,198,769.30
  5. Step 5: Solve for x
    x = 73,257,079,198,769.30/9,779,630.56
  6. Step 6: Final answer
    x = 7,490,781.86

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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.