Home / 80,075,008.20-120,112,512.30-19,490,734.20

Finding the Fourth Proportional to 80,075,008.20, 120,112,512.30 and 19,490,734.20

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Solution

The fourth proportional to 80,075,008.20, 120,112,512.30 and 19,490,734.20 is: 29,236,101.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,075,008.20 : 120,112,512.30 = 19,490,734.20 : x
  2. Step 2: Convert to fraction form
    80,075,008.20/120,112,512.30 = 19,490,734.20/x
  3. Step 3: Cross multiply
    80,075,008.20x = 120,112,512.30 × 19,490,734.20
  4. Step 4: Simplify right side
    80,075,008.20x = 2,341,081,051,333,530.50
  5. Step 5: Solve for x
    x = 2,341,081,051,333,530.50/80,075,008.20
  6. Step 6: Final answer
    x = 29,236,101.30

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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.