Home / 21,280,364.14-31,803,948.23-15,535,195.78

Finding the Fourth Proportional to 21,280,364.14, 31,803,948.23 and 15,535,195.78

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Solution

The fourth proportional to 21,280,364.14, 31,803,948.23 and 15,535,195.78 is: 23,217,674.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,280,364.14 : 31,803,948.23 = 15,535,195.78 : x
  2. Step 2: Convert to fraction form
    21,280,364.14/31,803,948.23 = 15,535,195.78/x
  3. Step 3: Cross multiply
    21,280,364.14x = 31,803,948.23 × 15,535,195.78
  4. Step 4: Simplify right side
    21,280,364.14x = 494,080,562,330,034.44
  5. Step 5: Solve for x
    x = 494,080,562,330,034.44/21,280,364.14
  6. Step 6: Final answer
    x = 23,217,674.24

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.