Home / 10,890,611.85-15,017,904.59-7,218,253.29

Finding the Fourth Proportional to 10,890,611.85, 15,017,904.59 and 7,218,253.29

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Solution

The fourth proportional to 10,890,611.85, 15,017,904.59 and 7,218,253.29 is: 9,953,806.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,890,611.85 : 15,017,904.59 = 7,218,253.29 : x
  2. Step 2: Convert to fraction form
    10,890,611.85/15,017,904.59 = 7,218,253.29/x
  3. Step 3: Cross multiply
    10,890,611.85x = 15,017,904.59 × 7,218,253.29
  4. Step 4: Simplify right side
    10,890,611.85x = 108,403,039,179,582.34
  5. Step 5: Solve for x
    x = 108,403,039,179,582.34/10,890,611.85
  6. Step 6: Final answer
    x = 9,953,806.15

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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.