Home / 15,371,974.18-21,213,775.50-8,403,036.82

Finding the Fourth Proportional to 15,371,974.18, 21,213,775.50 and 8,403,036.82

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Solution

The fourth proportional to 15,371,974.18, 21,213,775.50 and 8,403,036.82 is: 11,596,437.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,371,974.18 : 21,213,775.50 = 8,403,036.82 : x
  2. Step 2: Convert to fraction form
    15,371,974.18/21,213,775.50 = 8,403,036.82/x
  3. Step 3: Cross multiply
    15,371,974.18x = 21,213,775.50 × 8,403,036.82
  4. Step 4: Simplify right side
    15,371,974.18x = 178,260,136,617,713.91
  5. Step 5: Solve for x
    x = 178,260,136,617,713.91/15,371,974.18
  6. Step 6: Final answer
    x = 11,596,437.42

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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.