Home / 21,003,132-28,984,348.08-11,345,340

Finding the Fourth Proportional to 21,003,132, 28,984,348.08 and 11,345,340

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Solution

The fourth proportional to 21,003,132, 28,984,348.08 and 11,345,340 is: 15,656,583.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,003,132 : 28,984,348.08 = 11,345,340 : x
  2. Step 2: Convert to fraction form
    21,003,132/28,984,348.08 = 11,345,340/x
  3. Step 3: Cross multiply
    21,003,132x = 28,984,348.08 × 11,345,340
  4. Step 4: Simplify right side
    21,003,132x = 328,837,283,645,947.19
  5. Step 5: Solve for x
    x = 328,837,283,645,947.19/21,003,132
  6. Step 6: Final answer
    x = 15,656,583.20

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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.