Home / 808,514,645.60-1,212,771,968.40-747,292,642.40

Finding the Fourth Proportional to 808,514,645.60, 1,212,771,968.40 and 747,292,642.40

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Solution

The fourth proportional to 808,514,645.60, 1,212,771,968.40 and 747,292,642.40 is: 1,120,938,963.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,514,645.60 : 1,212,771,968.40 = 747,292,642.40 : x
  2. Step 2: Convert to fraction form
    808,514,645.60/1,212,771,968.40 = 747,292,642.40/x
  3. Step 3: Cross multiply
    808,514,645.60x = 1,212,771,968.40 × 747,292,642.40
  4. Step 4: Simplify right side
    808,514,645.60x = 906,295,568,894,285,312
  5. Step 5: Solve for x
    x = 906,295,568,894,285,312/808,514,645.60
  6. Step 6: Final answer
    x = 1,120,938,963.60

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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.