Home / 12,045,466.16-18,065,442.84-7,189,143.92

Finding the Fourth Proportional to 12,045,466.16, 18,065,442.84 and 7,189,143.92

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Solution

The fourth proportional to 12,045,466.16, 18,065,442.84 and 7,189,143.92 is: 10,782,070.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,045,466.16 : 18,065,442.84 = 7,189,143.92 : x
  2. Step 2: Convert to fraction form
    12,045,466.16/18,065,442.84 = 7,189,143.92/x
  3. Step 3: Cross multiply
    12,045,466.16x = 18,065,442.84 × 7,189,143.92
  4. Step 4: Simplify right side
    12,045,466.16x = 129,875,068,555,293.53
  5. Step 5: Solve for x
    x = 129,875,068,555,293.53/12,045,466.16
  6. Step 6: Final answer
    x = 10,782,070.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.