Home / 21,853,428-30,156,940.32-12,063,662.16

Finding the Fourth Proportional to 21,853,428, 30,156,940.32 and 12,063,662.16

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Solution

The fourth proportional to 21,853,428, 30,156,940.32 and 12,063,662.16 is: 16,647,417.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,853,428 : 30,156,940.32 = 12,063,662.16 : x
  2. Step 2: Convert to fraction form
    21,853,428/30,156,940.32 = 12,063,662.16/x
  3. Step 3: Cross multiply
    21,853,428x = 30,156,940.32 × 12,063,662.16
  4. Step 4: Simplify right side
    21,853,428x = 363,803,139,799,762.31
  5. Step 5: Solve for x
    x = 363,803,139,799,762.31/21,853,428
  6. Step 6: Final answer
    x = 16,647,417.50

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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.