Home / 663,830,144.40-995,745,216.60-357,720,128.40

Finding the Fourth Proportional to 663,830,144.40, 995,745,216.60 and 357,720,128.40

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Solution

The fourth proportional to 663,830,144.40, 995,745,216.60 and 357,720,128.40 is: 536,580,192.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,830,144.40 : 995,745,216.60 = 357,720,128.40 : x
  2. Step 2: Convert to fraction form
    663,830,144.40/995,745,216.60 = 357,720,128.40/x
  3. Step 3: Cross multiply
    663,830,144.40x = 995,745,216.60 × 357,720,128.40
  4. Step 4: Simplify right side
    663,830,144.40x = 356,198,106,735,837,824
  5. Step 5: Solve for x
    x = 356,198,106,735,837,824/663,830,144.40
  6. Step 6: Final answer
    x = 536,580,192.60

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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.