Home / 80,142,647.20-120,213,970.80-46,130,423.20

Finding the Fourth Proportional to 80,142,647.20, 120,213,970.80 and 46,130,423.20

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Solution

The fourth proportional to 80,142,647.20, 120,213,970.80 and 46,130,423.20 is: 69,195,634.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,142,647.20 : 120,213,970.80 = 46,130,423.20 : x
  2. Step 2: Convert to fraction form
    80,142,647.20/120,213,970.80 = 46,130,423.20/x
  3. Step 3: Cross multiply
    80,142,647.20x = 120,213,970.80 × 46,130,423.20
  4. Step 4: Simplify right side
    80,142,647.20x = 5,545,521,347,556,443
  5. Step 5: Solve for x
    x = 5,545,521,347,556,443/80,142,647.20
  6. Step 6: Final answer
    x = 69,195,634.80

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1.5x scale

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.