Home / 28,420,080.19-39,219,683.02-15,367,307.85

Finding the Fourth Proportional to 28,420,080.19, 39,219,683.02 and 15,367,307.85

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Solution

The fourth proportional to 28,420,080.19, 39,219,683.02 and 15,367,307.85 is: 21,206,869.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,420,080.19 : 39,219,683.02 = 15,367,307.85 : x
  2. Step 2: Convert to fraction form
    28,420,080.19/39,219,683.02 = 15,367,307.85/x
  3. Step 3: Cross multiply
    28,420,080.19x = 39,219,683.02 × 15,367,307.85
  4. Step 4: Simplify right side
    28,420,080.19x = 602,700,942,709,339.38
  5. Step 5: Solve for x
    x = 602,700,942,709,339.38/28,420,080.19
  6. Step 6: Final answer
    x = 21,206,869.89

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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.