Home / 13,115,597.61-18,099,541.28-7,235,098.86

Finding the Fourth Proportional to 13,115,597.61, 18,099,541.28 and 7,235,098.86

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Solution

The fourth proportional to 13,115,597.61, 18,099,541.28 and 7,235,098.86 is: 9,984,445.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,115,597.61 : 18,099,541.28 = 7,235,098.86 : x
  2. Step 2: Convert to fraction form
    13,115,597.61/18,099,541.28 = 7,235,098.86/x
  3. Step 3: Cross multiply
    13,115,597.61x = 18,099,541.28 × 7,235,098.86
  4. Step 4: Simplify right side
    13,115,597.61x = 130,951,970,499,538.69
  5. Step 5: Solve for x
    x = 130,951,970,499,538.69/13,115,597.61
  6. Step 6: Final answer
    x = 9,984,445.57

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1.5x scale

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.