Home / 721,606,955.67-995,817,598.92-391,582,094.67

Finding the Fourth Proportional to 721,606,955.67, 995,817,598.92 and 391,582,094.67

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Solution

The fourth proportional to 721,606,955.67, 995,817,598.92 and 391,582,094.67 is: 540,383,290.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,606,955.67 : 995,817,598.92 = 391,582,094.67 : x
  2. Step 2: Convert to fraction form
    721,606,955.67/995,817,598.92 = 391,582,094.67/x
  3. Step 3: Cross multiply
    721,606,955.67x = 995,817,598.92 × 391,582,094.67
  4. Step 4: Simplify right side
    721,606,955.67x = 389,944,341,294,343,552
  5. Step 5: Solve for x
    x = 389,944,341,294,343,552/721,606,955.67
  6. Step 6: Final answer
    x = 540,383,290.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.