Home / 186,020,425.70-279,030,638.55-145,665,404.90

Finding the Fourth Proportional to 186,020,425.70, 279,030,638.55 and 145,665,404.90

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Solution

The fourth proportional to 186,020,425.70, 279,030,638.55 and 145,665,404.90 is: 218,498,107.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,020,425.70 : 279,030,638.55 = 145,665,404.90 : x
  2. Step 2: Convert to fraction form
    186,020,425.70/279,030,638.55 = 145,665,404.90/x
  3. Step 3: Cross multiply
    186,020,425.70x = 279,030,638.55 × 145,665,404.90
  4. Step 4: Simplify right side
    186,020,425.70x = 40,645,110,943,891,304
  5. Step 5: Solve for x
    x = 40,645,110,943,891,304/186,020,425.70
  6. Step 6: Final answer
    x = 218,498,107.35

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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.