Home / 260,109,320.38-390,165,284.40-66,020,793.46

Finding the Fourth Proportional to 260,109,320.38, 390,165,284.40 and 66,020,793.46

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Solution

The fourth proportional to 260,109,320.38, 390,165,284.40 and 66,020,793.46 is: 99,031,521.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,109,320.38 : 390,165,284.40 = 66,020,793.46 : x
  2. Step 2: Convert to fraction form
    260,109,320.38/390,165,284.40 = 66,020,793.46/x
  3. Step 3: Cross multiply
    260,109,320.38x = 390,165,284.40 × 66,020,793.46
  4. Step 4: Simplify right side
    260,109,320.38x = 25,759,021,656,634,560
  5. Step 5: Solve for x
    x = 25,759,021,656,634,560/260,109,320.38
  6. Step 6: Final answer
    x = 99,031,521.13

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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.