Home / 80,142,642.70-120,213,964.05-46,130,418.70

Finding the Fourth Proportional to 80,142,642.70, 120,213,964.05 and 46,130,418.70

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Solution

The fourth proportional to 80,142,642.70, 120,213,964.05 and 46,130,418.70 is: 69,195,628.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,142,642.70 : 120,213,964.05 = 46,130,418.70 : x
  2. Step 2: Convert to fraction form
    80,142,642.70/120,213,964.05 = 46,130,418.70/x
  3. Step 3: Cross multiply
    80,142,642.70x = 120,213,964.05 × 46,130,418.70
  4. Step 4: Simplify right side
    80,142,642.70x = 5,545,520,495,213,248
  5. Step 5: Solve for x
    x = 5,545,520,495,213,248/80,142,642.70
  6. Step 6: Final answer
    x = 69,195,628.05

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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.