Home / 910,816,468.74-1,256,911,485.21-493,125,362.82

Finding the Fourth Proportional to 910,816,468.74, 1,256,911,485.21 and 493,125,362.82

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Solution

The fourth proportional to 910,816,468.74, 1,256,911,485.21 and 493,125,362.82 is: 680,504,748.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,816,468.74 : 1,256,911,485.21 = 493,125,362.82 : x
  2. Step 2: Convert to fraction form
    910,816,468.74/1,256,911,485.21 = 493,125,362.82/x
  3. Step 3: Cross multiply
    910,816,468.74x = 1,256,911,485.21 × 493,125,362.82
  4. Step 4: Simplify right side
    910,816,468.74x = 619,814,932,176,806,272
  5. Step 5: Solve for x
    x = 619,814,932,176,806,272/910,816,468.74
  6. Step 6: Final answer
    x = 680,504,748.71

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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.