Home / 12,346,912.80-18,541,364.40-9,155,642.40

Finding the Fourth Proportional to 12,346,912.80, 18,541,364.40 and 9,155,642.40

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Solution

The fourth proportional to 12,346,912.80, 18,541,364.40 and 9,155,642.40 is: 13,749,032.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,346,912.80 : 18,541,364.40 = 9,155,642.40 : x
  2. Step 2: Convert to fraction form
    12,346,912.80/18,541,364.40 = 9,155,642.40/x
  3. Step 3: Cross multiply
    12,346,912.80x = 18,541,364.40 × 9,155,642.40
  4. Step 4: Simplify right side
    12,346,912.80x = 169,758,102,054,490.56
  5. Step 5: Solve for x
    x = 169,758,102,054,490.56/12,346,912.80
  6. Step 6: Final answer
    x = 13,749,032.23

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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.