Home / 13,457,332.75-18,570,882.21-7,655,990.83

Finding the Fourth Proportional to 13,457,332.75, 18,570,882.21 and 7,655,990.83

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Solution

The fourth proportional to 13,457,332.75, 18,570,882.21 and 7,655,990.83 is: 10,565,132.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,457,332.75 : 18,570,882.21 = 7,655,990.83 : x
  2. Step 2: Convert to fraction form
    13,457,332.75/18,570,882.21 = 7,655,990.83/x
  3. Step 3: Cross multiply
    13,457,332.75x = 18,570,882.21 × 7,655,990.83
  4. Step 4: Simplify right side
    13,457,332.75x = 142,178,503,904,770.16
  5. Step 5: Solve for x
    x = 142,178,503,904,770.16/13,457,332.75
  6. Step 6: Final answer
    x = 10,565,132.52

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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.