Home / 186,656,830.80-279,985,246.20-129,261,202.80

Finding the Fourth Proportional to 186,656,830.80, 279,985,246.20 and 129,261,202.80

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Solution

The fourth proportional to 186,656,830.80, 279,985,246.20 and 129,261,202.80 is: 193,891,804.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,656,830.80 : 279,985,246.20 = 129,261,202.80 : x
  2. Step 2: Convert to fraction form
    186,656,830.80/279,985,246.20 = 129,261,202.80/x
  3. Step 3: Cross multiply
    186,656,830.80x = 279,985,246.20 × 129,261,202.80
  4. Step 4: Simplify right side
    186,656,830.80x = 36,191,229,690,066,128
  5. Step 5: Solve for x
    x = 36,191,229,690,066,128/186,656,830.80
  6. Step 6: Final answer
    x = 193,891,804.20

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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.