Home / 21,579,920.60-29,779,941.95-11,790,154.08

Finding the Fourth Proportional to 21,579,920.60, 29,779,941.95 and 11,790,154.08

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Solution

The fourth proportional to 21,579,920.60, 29,779,941.95 and 11,790,154.08 is: 16,270,222.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,579,920.60 : 29,779,941.95 = 11,790,154.08 : x
  2. Step 2: Convert to fraction form
    21,579,920.60/29,779,941.95 = 11,790,154.08/x
  3. Step 3: Cross multiply
    21,579,920.60x = 29,779,941.95 × 11,790,154.08
  4. Step 4: Simplify right side
    21,579,920.60x = 351,110,104,025,004.88
  5. Step 5: Solve for x
    x = 351,110,104,025,004.88/21,579,920.60
  6. Step 6: Final answer
    x = 16,270,222.24

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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.