Home / 679,966,279.20-1,019,949,418.80-625,546,720.80

Finding the Fourth Proportional to 679,966,279.20, 1,019,949,418.80 and 625,546,720.80

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Solution

The fourth proportional to 679,966,279.20, 1,019,949,418.80 and 625,546,720.80 is: 938,320,081.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,966,279.20 : 1,019,949,418.80 = 625,546,720.80 : x
  2. Step 2: Convert to fraction form
    679,966,279.20/1,019,949,418.80 = 625,546,720.80/x
  3. Step 3: Cross multiply
    679,966,279.20x = 1,019,949,418.80 × 625,546,720.80
  4. Step 4: Simplify right side
    679,966,279.20x = 638,026,014,312,205,824
  5. Step 5: Solve for x
    x = 638,026,014,312,205,824/679,966,279.20
  6. Step 6: Final answer
    x = 938,320,081.20

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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.