Home / 910,880,852.66-1,257,016,169.78-493,193,420.90

Finding the Fourth Proportional to 910,880,852.66, 1,257,016,169.78 and 493,193,420.90

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Solution

The fourth proportional to 910,880,852.66, 1,257,016,169.78 and 493,193,420.90 is: 680,607,241.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,880,852.66 : 1,257,016,169.78 = 493,193,420.90 : x
  2. Step 2: Convert to fraction form
    910,880,852.66/1,257,016,169.78 = 493,193,420.90/x
  3. Step 3: Cross multiply
    910,880,852.66x = 1,257,016,169.78 × 493,193,420.90
  4. Step 4: Simplify right side
    910,880,852.66x = 619,952,104,891,662,336
  5. Step 5: Solve for x
    x = 619,952,104,891,662,336/910,880,852.66
  6. Step 6: Final answer
    x = 680,607,241.97

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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.