Home / 699,642,708,541.76-965,510,508,111.24-390,999,218,882

Finding the Fourth Proportional to 699,642,708,541.76, 965,510,508,111.24 and 390,999,218,882

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Solution

The fourth proportional to 699,642,708,541.76, 965,510,508,111.24 and 390,999,218,882 is: 539,580,917,352.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,642,708,541.76 : 965,510,508,111.24 = 390,999,218,882 : x
  2. Step 2: Convert to fraction form
    699,642,708,541.76/965,510,508,111.24 = 390,999,218,882/x
  3. Step 3: Cross multiply
    699,642,708,541.76x = 965,510,508,111.24 × 390,999,218,882
  4. Step 4: Simplify right side
    699,642,708,541.76x = 377,513,854,493,857,767,489,536
  5. Step 5: Solve for x
    x = 377,513,854,493,857,767,489,536/699,642,708,541.76
  6. Step 6: Final answer
    x = 539,580,917,352.37

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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.