Home / 9,129,811.90-12,612,263.88-7,291,857.10

Finding the Fourth Proportional to 9,129,811.90, 12,612,263.88 and 7,291,857.10

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Solution

The fourth proportional to 9,129,811.90, 12,612,263.88 and 7,291,857.10 is: 10,073,244.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,129,811.90 : 12,612,263.88 = 7,291,857.10 : x
  2. Step 2: Convert to fraction form
    9,129,811.90/12,612,263.88 = 7,291,857.10/x
  3. Step 3: Cross multiply
    9,129,811.90x = 12,612,263.88 × 7,291,857.10
  4. Step 4: Simplify right side
    9,129,811.90x = 91,966,825,920,451.55
  5. Step 5: Solve for x
    x = 91,966,825,920,451.55/9,129,811.90
  6. Step 6: Final answer
    x = 10,073,244.33

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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.