Home / 20,775,335.85-28,670,075.91-11,356,139.66

Finding the Fourth Proportional to 20,775,335.85, 28,670,075.91 and 11,356,139.66

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Solution

The fourth proportional to 20,775,335.85, 28,670,075.91 and 11,356,139.66 is: 15,671,534.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,775,335.85 : 28,670,075.91 = 11,356,139.66 : x
  2. Step 2: Convert to fraction form
    20,775,335.85/28,670,075.91 = 11,356,139.66/x
  3. Step 3: Cross multiply
    20,775,335.85x = 28,670,075.91 × 11,356,139.66
  4. Step 4: Simplify right side
    20,775,335.85x = 325,581,385,953,411.19
  5. Step 5: Solve for x
    x = 325,581,385,953,411.19/20,775,335.85
  6. Step 6: Final answer
    x = 15,671,534.18

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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.