Home / 893,678,806.53-1,233,288,098.10-491,838,822.38

Finding the Fourth Proportional to 893,678,806.53, 1,233,288,098.10 and 491,838,822.38

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Solution

The fourth proportional to 893,678,806.53, 1,233,288,098.10 and 491,838,822.38 is: 678,743,818.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    893,678,806.53 : 1,233,288,098.10 = 491,838,822.38 : x
  2. Step 2: Convert to fraction form
    893,678,806.53/1,233,288,098.10 = 491,838,822.38/x
  3. Step 3: Cross multiply
    893,678,806.53x = 1,233,288,098.10 × 491,838,822.38
  4. Step 4: Simplify right side
    893,678,806.53x = 606,578,965,824,773,888
  5. Step 5: Solve for x
    x = 606,578,965,824,773,888/893,678,806.53
  6. Step 6: Final answer
    x = 678,743,818.69

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1.5x scale

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.