Home / 12,255,189.28-16,911,830.80-6,822,681.76

Finding the Fourth Proportional to 12,255,189.28, 16,911,830.80 and 6,822,681.76

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Solution

The fourth proportional to 12,255,189.28, 16,911,830.80 and 6,822,681.76 is: 9,415,116.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,255,189.28 : 16,911,830.80 = 6,822,681.76 : x
  2. Step 2: Convert to fraction form
    12,255,189.28/16,911,830.80 = 6,822,681.76/x
  3. Step 3: Cross multiply
    12,255,189.28x = 16,911,830.80 × 6,822,681.76
  4. Step 4: Simplify right side
    12,255,189.28x = 115,384,039,527,366.20
  5. Step 5: Solve for x
    x = 115,384,039,527,366.20/12,255,189.28
  6. Step 6: Final answer
    x = 9,415,116.89

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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.