Home / 778,986,886.20-1,168,480,329.30-488,749,241.40

Finding the Fourth Proportional to 778,986,886.20, 1,168,480,329.30 and 488,749,241.40

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Solution

The fourth proportional to 778,986,886.20, 1,168,480,329.30 and 488,749,241.40 is: 733,123,862.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,986,886.20 : 1,168,480,329.30 = 488,749,241.40 : x
  2. Step 2: Convert to fraction form
    778,986,886.20/1,168,480,329.30 = 488,749,241.40/x
  3. Step 3: Cross multiply
    778,986,886.20x = 1,168,480,329.30 × 488,749,241.40
  4. Step 4: Simplify right side
    778,986,886.20x = 571,093,874,536,197,120
  5. Step 5: Solve for x
    x = 571,093,874,536,197,120/778,986,886.20
  6. Step 6: Final answer
    x = 733,123,862.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.