Home / 13,277,040.16-18,326,377.20-7,771,702.72

Finding the Fourth Proportional to 13,277,040.16, 18,326,377.20 and 7,771,702.72

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Solution

The fourth proportional to 13,277,040.16, 18,326,377.20 and 7,771,702.72 is: 10,727,327.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,277,040.16 : 18,326,377.20 = 7,771,702.72 : x
  2. Step 2: Convert to fraction form
    13,277,040.16/18,326,377.20 = 7,771,702.72/x
  3. Step 3: Cross multiply
    13,277,040.16x = 18,326,377.20 × 7,771,702.72
  4. Step 4: Simplify right side
    13,277,040.16x = 142,427,155,532,985.97
  5. Step 5: Solve for x
    x = 142,427,155,532,985.97/13,277,040.16
  6. Step 6: Final answer
    x = 10,727,327.31

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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.