Home / 260,592,963.40-390,889,113.90-66,504,382.12

Finding the Fourth Proportional to 260,592,963.40, 390,889,113.90 and 66,504,382.12

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Solution

The fourth proportional to 260,592,963.40, 390,889,113.90 and 66,504,382.12 is: 99,756,488.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,592,963.40 : 390,889,113.90 = 66,504,382.12 : x
  2. Step 2: Convert to fraction form
    260,592,963.40/390,889,113.90 = 66,504,382.12/x
  3. Step 3: Cross multiply
    260,592,963.40x = 390,889,113.90 × 66,504,382.12
  4. Step 4: Simplify right side
    260,592,963.40x = 25,995,838,997,353,800
  5. Step 5: Solve for x
    x = 25,995,838,997,353,800/260,592,963.40
  6. Step 6: Final answer
    x = 99,756,488.66

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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.