Home / 18,390,741.12-25,375,339.80-10,655,312.40

Finding the Fourth Proportional to 18,390,741.12, 25,375,339.80 and 10,655,312.40

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Solution

The fourth proportional to 18,390,741.12, 25,375,339.80 and 10,655,312.40 is: 14,702,081.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,390,741.12 : 25,375,339.80 = 10,655,312.40 : x
  2. Step 2: Convert to fraction form
    18,390,741.12/25,375,339.80 = 10,655,312.40/x
  3. Step 3: Cross multiply
    18,390,741.12x = 25,375,339.80 × 10,655,312.40
  4. Step 4: Simplify right side
    18,390,741.12x = 270,382,172,825,153.53
  5. Step 5: Solve for x
    x = 270,382,172,825,153.53/18,390,741.12
  6. Step 6: Final answer
    x = 14,702,081.39

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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.