Home / 131,075,938.80-196,739,879.40-66,452,713.20

Finding the Fourth Proportional to 131,075,938.80, 196,739,879.40 and 66,452,713.20

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Solution

The fourth proportional to 131,075,938.80, 196,739,879.40 and 66,452,713.20 is: 99,742,934.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,075,938.80 : 196,739,879.40 = 66,452,713.20 : x
  2. Step 2: Convert to fraction form
    131,075,938.80/196,739,879.40 = 66,452,713.20/x
  3. Step 3: Cross multiply
    131,075,938.80x = 196,739,879.40 × 66,452,713.20
  4. Step 4: Simplify right side
    131,075,938.80x = 13,073,898,780,770,790
  5. Step 5: Solve for x
    x = 13,073,898,780,770,790/131,075,938.80
  6. Step 6: Final answer
    x = 99,742,934.52

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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.