Home / 12,922,353.28-17,832,967.04-7,121,342.72

Finding the Fourth Proportional to 12,922,353.28, 17,832,967.04 and 7,121,342.72

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Solution

The fourth proportional to 12,922,353.28, 17,832,967.04 and 7,121,342.72 is: 9,827,518.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,922,353.28 : 17,832,967.04 = 7,121,342.72 : x
  2. Step 2: Convert to fraction form
    12,922,353.28/17,832,967.04 = 7,121,342.72/x
  3. Step 3: Cross multiply
    12,922,353.28x = 17,832,967.04 × 7,121,342.72
  4. Step 4: Simplify right side
    12,922,353.28x = 126,994,670,006,303.94
  5. Step 5: Solve for x
    x = 126,994,670,006,303.94/12,922,353.28
  6. Step 6: Final answer
    x = 9,827,518.82

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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.