Home / 501,965,756.42-692,729,545.61-278,956,837.49

Finding the Fourth Proportional to 501,965,756.42, 692,729,545.61 and 278,956,837.49

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Solution

The fourth proportional to 501,965,756.42, 692,729,545.61 and 278,956,837.49 is: 384,969,772.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,965,756.42 : 692,729,545.61 = 278,956,837.49 : x
  2. Step 2: Convert to fraction form
    501,965,756.42/692,729,545.61 = 278,956,837.49/x
  3. Step 3: Cross multiply
    501,965,756.42x = 692,729,545.61 × 278,956,837.49
  4. Step 4: Simplify right side
    501,965,756.42x = 193,241,643,275,257,792
  5. Step 5: Solve for x
    x = 193,241,643,275,257,792/501,965,756.42
  6. Step 6: Final answer
    x = 384,969,772.95

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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.