Home / 260,109,331.56-390,165,301.20-66,020,804.52

Finding the Fourth Proportional to 260,109,331.56, 390,165,301.20 and 66,020,804.52

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Solution

The fourth proportional to 260,109,331.56, 390,165,301.20 and 66,020,804.52 is: 99,031,537.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,109,331.56 : 390,165,301.20 = 66,020,804.52 : x
  2. Step 2: Convert to fraction form
    260,109,331.56/390,165,301.20 = 66,020,804.52/x
  3. Step 3: Cross multiply
    260,109,331.56x = 390,165,301.20 × 66,020,804.52
  4. Step 4: Simplify right side
    260,109,331.56x = 25,759,027,081,012,120
  5. Step 5: Solve for x
    x = 25,759,027,081,012,120/260,109,331.56
  6. Step 6: Final answer
    x = 99,031,537.73

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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.