Home / 808,514,620.10-1,212,771,930.15-747,292,616.90

Finding the Fourth Proportional to 808,514,620.10, 1,212,771,930.15 and 747,292,616.90

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Solution

The fourth proportional to 808,514,620.10, 1,212,771,930.15 and 747,292,616.90 is: 1,120,938,925.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,514,620.10 : 1,212,771,930.15 = 747,292,616.90 : x
  2. Step 2: Convert to fraction form
    808,514,620.10/1,212,771,930.15 = 747,292,616.90/x
  3. Step 3: Cross multiply
    808,514,620.10x = 1,212,771,930.15 × 747,292,616.90
  4. Step 4: Simplify right side
    808,514,620.10x = 906,295,509,384,657,536
  5. Step 5: Solve for x
    x = 906,295,509,384,657,536/808,514,620.10
  6. Step 6: Final answer
    x = 1,120,938,925.35

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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.