Home / 8,128,565.56-12,167,438.52-5,246,079.40

Finding the Fourth Proportional to 8,128,565.56, 12,167,438.52 and 5,246,079.40

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Solution

The fourth proportional to 8,128,565.56, 12,167,438.52 and 5,246,079.40 is: 7,852,719.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,128,565.56 : 12,167,438.52 = 5,246,079.40 : x
  2. Step 2: Convert to fraction form
    8,128,565.56/12,167,438.52 = 5,246,079.40/x
  3. Step 3: Cross multiply
    8,128,565.56x = 12,167,438.52 × 5,246,079.40
  4. Step 4: Simplify right side
    8,128,565.56x = 63,831,348,570,538.49
  5. Step 5: Solve for x
    x = 63,831,348,570,538.49/8,128,565.56
  6. Step 6: Final answer
    x = 7,852,719.90

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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.