Home / 80,509,075.20-120,763,612.80-67,754,491.20

Finding the Fourth Proportional to 80,509,075.20, 120,763,612.80 and 67,754,491.20

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Solution

The fourth proportional to 80,509,075.20, 120,763,612.80 and 67,754,491.20 is: 101,631,736.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,509,075.20 : 120,763,612.80 = 67,754,491.20 : x
  2. Step 2: Convert to fraction form
    80,509,075.20/120,763,612.80 = 67,754,491.20/x
  3. Step 3: Cross multiply
    80,509,075.20x = 120,763,612.80 × 67,754,491.20
  4. Step 4: Simplify right side
    80,509,075.20x = 8,182,277,140,737,808
  5. Step 5: Solve for x
    x = 8,182,277,140,737,808/80,509,075.20
  6. Step 6: Final answer
    x = 101,631,736.80

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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.