Home / 778,986,911.20-1,168,480,366.80-488,749,266.40

Finding the Fourth Proportional to 778,986,911.20, 1,168,480,366.80 and 488,749,266.40

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Solution

The fourth proportional to 778,986,911.20, 1,168,480,366.80 and 488,749,266.40 is: 733,123,899.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,986,911.20 : 1,168,480,366.80 = 488,749,266.40 : x
  2. Step 2: Convert to fraction form
    778,986,911.20/1,168,480,366.80 = 488,749,266.40/x
  3. Step 3: Cross multiply
    778,986,911.20x = 1,168,480,366.80 × 488,749,266.40
  4. Step 4: Simplify right side
    778,986,911.20x = 571,093,922,076,302,848
  5. Step 5: Solve for x
    x = 571,093,922,076,302,848/778,986,911.20
  6. Step 6: Final answer
    x = 733,123,899.60

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Double scale
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1.5x scale

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.