Home / 9,129,810.90-12,612,262.50-7,291,856.10

Finding the Fourth Proportional to 9,129,810.90, 12,612,262.50 and 7,291,856.10

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Solution

The fourth proportional to 9,129,810.90, 12,612,262.50 and 7,291,856.10 is: 10,073,242.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,129,810.90 : 12,612,262.50 = 7,291,856.10 : x
  2. Step 2: Convert to fraction form
    9,129,810.90/12,612,262.50 = 7,291,856.10/x
  3. Step 3: Cross multiply
    9,129,810.90x = 12,612,262.50 × 7,291,856.10
  4. Step 4: Simplify right side
    9,129,810.90x = 91,966,803,245,426.25
  5. Step 5: Solve for x
    x = 91,966,803,245,426.25/9,129,810.90
  6. Step 6: Final answer
    x = 10,073,242.95

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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.