Home / 390,094,062.46-585,078,806.21-113,680,620.53

Finding the Fourth Proportional to 390,094,062.46, 585,078,806.21 and 113,680,620.53

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Solution

The fourth proportional to 390,094,062.46, 585,078,806.21 and 113,680,620.53 is: 170,502,779.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,094,062.46 : 585,078,806.21 = 113,680,620.53 : x
  2. Step 2: Convert to fraction form
    390,094,062.46/585,078,806.21 = 113,680,620.53/x
  3. Step 3: Cross multiply
    390,094,062.46x = 585,078,806.21 × 113,680,620.53
  4. Step 4: Simplify right side
    390,094,062.46x = 66,512,121,748,904,424
  5. Step 5: Solve for x
    x = 66,512,121,748,904,424/390,094,062.46
  6. Step 6: Final answer
    x = 170,502,779.07

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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.