Home / 431,160,285.56-646,745,560.54-120,248,984.89

Finding the Fourth Proportional to 431,160,285.56, 646,745,560.54 and 120,248,984.89

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Solution

The fourth proportional to 431,160,285.56, 646,745,560.54 and 120,248,984.89 is: 180,374,908.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,160,285.56 : 646,745,560.54 = 120,248,984.89 : x
  2. Step 2: Convert to fraction form
    431,160,285.56/646,745,560.54 = 120,248,984.89/x
  3. Step 3: Cross multiply
    431,160,285.56x = 646,745,560.54 × 120,248,984.89
  4. Step 4: Simplify right side
    431,160,285.56x = 77,770,497,140,052,416
  5. Step 5: Solve for x
    x = 77,770,497,140,052,416/431,160,285.56
  6. Step 6: Final answer
    x = 180,374,908.69

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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.