Home / 808,514,648.60-1,212,771,972.90-747,292,645.40

Finding the Fourth Proportional to 808,514,648.60, 1,212,771,972.90 and 747,292,645.40

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Solution

The fourth proportional to 808,514,648.60, 1,212,771,972.90 and 747,292,645.40 is: 1,120,938,968.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,514,648.60 : 1,212,771,972.90 = 747,292,645.40 : x
  2. Step 2: Convert to fraction form
    808,514,648.60/1,212,771,972.90 = 747,292,645.40/x
  3. Step 3: Cross multiply
    808,514,648.60x = 1,212,771,972.90 × 747,292,645.40
  4. Step 4: Simplify right side
    808,514,648.60x = 906,295,575,895,418,112
  5. Step 5: Solve for x
    x = 906,295,575,895,418,112/808,514,648.60
  6. Step 6: Final answer
    x = 1,120,938,968.10

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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.