Home / 260,138,360.28-390,207,708.90-66,064,330.20

Finding the Fourth Proportional to 260,138,360.28, 390,207,708.90 and 66,064,330.20

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Solution

The fourth proportional to 260,138,360.28, 390,207,708.90 and 66,064,330.20 is: 99,096,538.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,138,360.28 : 390,207,708.90 = 66,064,330.20 : x
  2. Step 2: Convert to fraction form
    260,138,360.28/390,207,708.90 = 66,064,330.20/x
  3. Step 3: Cross multiply
    260,138,360.28x = 390,207,708.90 × 66,064,330.20
  4. Step 4: Simplify right side
    260,138,360.28x = 25,778,810,927,355,080
  5. Step 5: Solve for x
    x = 25,778,810,927,355,080/260,138,360.28
  6. Step 6: Final answer
    x = 99,096,538.09

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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.