Home / 910,880,806.62-1,257,016,106.25-493,193,374.86

Finding the Fourth Proportional to 910,880,806.62, 1,257,016,106.25 and 493,193,374.86

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Solution

The fourth proportional to 910,880,806.62, 1,257,016,106.25 and 493,193,374.86 is: 680,607,178.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,880,806.62 : 1,257,016,106.25 = 493,193,374.86 : x
  2. Step 2: Convert to fraction form
    910,880,806.62/1,257,016,106.25 = 493,193,374.86/x
  3. Step 3: Cross multiply
    910,880,806.62x = 1,257,016,106.25 × 493,193,374.86
  4. Step 4: Simplify right side
    910,880,806.62x = 619,952,015,694,813,824
  5. Step 5: Solve for x
    x = 619,952,015,694,813,824/910,880,806.62
  6. Step 6: Final answer
    x = 680,607,178.45

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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.