Home / 260,592,964.40-390,889,115.40-66,504,383.12

Finding the Fourth Proportional to 260,592,964.40, 390,889,115.40 and 66,504,383.12

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Solution

The fourth proportional to 260,592,964.40, 390,889,115.40 and 66,504,383.12 is: 99,756,490.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,592,964.40 : 390,889,115.40 = 66,504,383.12 : x
  2. Step 2: Convert to fraction form
    260,592,964.40/390,889,115.40 = 66,504,383.12/x
  3. Step 3: Cross multiply
    260,592,964.40x = 390,889,115.40 × 66,504,383.12
  4. Step 4: Simplify right side
    260,592,964.40x = 25,995,839,487,999,488
  5. Step 5: Solve for x
    x = 25,995,839,487,999,488/260,592,964.40
  6. Step 6: Final answer
    x = 99,756,490.16

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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.