Home / 85,159,075.43-127,738,613.30-20,462,880.57

Finding the Fourth Proportional to 85,159,075.43, 127,738,613.30 and 20,462,880.57

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Solution

The fourth proportional to 85,159,075.43, 127,738,613.30 and 20,462,880.57 is: 30,694,320.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,159,075.43 : 127,738,613.30 = 20,462,880.57 : x
  2. Step 2: Convert to fraction form
    85,159,075.43/127,738,613.30 = 20,462,880.57/x
  3. Step 3: Cross multiply
    85,159,075.43x = 127,738,613.30 × 20,462,880.57
  4. Step 4: Simplify right side
    85,159,075.43x = 2,613,899,988,387,510.50
  5. Step 5: Solve for x
    x = 2,613,899,988,387,510.50/85,159,075.43
  6. Step 6: Final answer
    x = 30,694,320.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.