Home / 87,075,721.47-120,161,482.38-47,913,834.18

Finding the Fourth Proportional to 87,075,721.47, 120,161,482.38 and 47,913,834.18

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Solution

The fourth proportional to 87,075,721.47, 120,161,482.38 and 47,913,834.18 is: 66,119,433.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,075,721.47 : 120,161,482.38 = 47,913,834.18 : x
  2. Step 2: Convert to fraction form
    87,075,721.47/120,161,482.38 = 47,913,834.18/x
  3. Step 3: Cross multiply
    87,075,721.47x = 120,161,482.38 × 47,913,834.18
  4. Step 4: Simplify right side
    87,075,721.47x = 5,757,397,341,578,311
  5. Step 5: Solve for x
    x = 5,757,397,341,578,311/87,075,721.47
  6. Step 6: Final answer
    x = 66,119,433.11

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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.