Home / 15,148,854.40-20,905,442.40-8,622,483.72

Finding the Fourth Proportional to 15,148,854.40, 20,905,442.40 and 8,622,483.72

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Solution

The fourth proportional to 15,148,854.40, 20,905,442.40 and 8,622,483.72 is: 11,899,040.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,148,854.40 : 20,905,442.40 = 8,622,483.72 : x
  2. Step 2: Convert to fraction form
    15,148,854.40/20,905,442.40 = 8,622,483.72/x
  3. Step 3: Cross multiply
    15,148,854.40x = 20,905,442.40 × 8,622,483.72
  4. Step 4: Simplify right side
    15,148,854.40x = 180,256,836,753,397.72
  5. Step 5: Solve for x
    x = 180,256,836,753,397.72/15,148,854.40
  6. Step 6: Final answer
    x = 11,899,040.81

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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.