Home / 290,304,000.80-435,456,001.20-260,742,759.20

Finding the Fourth Proportional to 290,304,000.80, 435,456,001.20 and 260,742,759.20

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Solution

The fourth proportional to 290,304,000.80, 435,456,001.20 and 260,742,759.20 is: 391,114,138.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,304,000.80 : 435,456,001.20 = 260,742,759.20 : x
  2. Step 2: Convert to fraction form
    290,304,000.80/435,456,001.20 = 260,742,759.20/x
  3. Step 3: Cross multiply
    290,304,000.80x = 435,456,001.20 × 260,742,759.20
  4. Step 4: Simplify right side
    290,304,000.80x = 113,541,999,263,086,496
  5. Step 5: Solve for x
    x = 113,541,999,263,086,496/290,304,000.80
  6. Step 6: Final answer
    x = 391,114,138.80

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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.