Home / 21,778,045.36-30,046,932.87-12,357,277.95

Finding the Fourth Proportional to 21,778,045.36, 30,046,932.87 and 12,357,277.95

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Solution

The fourth proportional to 21,778,045.36, 30,046,932.87 and 12,357,277.95 is: 17,049,202.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,778,045.36 : 30,046,932.87 = 12,357,277.95 : x
  2. Step 2: Convert to fraction form
    21,778,045.36/30,046,932.87 = 12,357,277.95/x
  3. Step 3: Cross multiply
    21,778,045.36x = 30,046,932.87 × 12,357,277.95
  4. Step 4: Simplify right side
    21,778,045.36x = 371,298,300,868,418.31
  5. Step 5: Solve for x
    x = 371,298,300,868,418.31/21,778,045.36
  6. Step 6: Final answer
    x = 17,049,202.29

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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.