Home / 721,606,956.67-995,817,600.30-391,582,095.67

Finding the Fourth Proportional to 721,606,956.67, 995,817,600.30 and 391,582,095.67

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Solution

The fourth proportional to 721,606,956.67, 995,817,600.30 and 391,582,095.67 is: 540,383,292.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,606,956.67 : 995,817,600.30 = 391,582,095.67 : x
  2. Step 2: Convert to fraction form
    721,606,956.67/995,817,600.30 = 391,582,095.67/x
  3. Step 3: Cross multiply
    721,606,956.67x = 995,817,600.30 × 391,582,095.67
  4. Step 4: Simplify right side
    721,606,956.67x = 389,944,342,830,544,448
  5. Step 5: Solve for x
    x = 389,944,342,830,544,448/721,606,956.67
  6. Step 6: Final answer
    x = 540,383,292.08

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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.