Home / 12,381,933.09-17,088,643.88-7,487,189.90

Finding the Fourth Proportional to 12,381,933.09, 17,088,643.88 and 7,487,189.90

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Solution

The fourth proportional to 12,381,933.09, 17,088,643.88 and 7,487,189.90 is: 10,333,275.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,381,933.09 : 17,088,643.88 = 7,487,189.90 : x
  2. Step 2: Convert to fraction form
    12,381,933.09/17,088,643.88 = 7,487,189.90/x
  3. Step 3: Cross multiply
    12,381,933.09x = 17,088,643.88 × 7,487,189.90
  4. Step 4: Simplify right side
    12,381,933.09x = 127,945,921,863,032.81
  5. Step 5: Solve for x
    x = 127,945,921,863,032.81/12,381,933.09
  6. Step 6: Final answer
    x = 10,333,275.18

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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.