Home / 1,348,071,147.20-2,022,106,720.80-428,019,492.80

Finding the Fourth Proportional to 1,348,071,147.20, 2,022,106,720.80 and 428,019,492.80

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Solution

The fourth proportional to 1,348,071,147.20, 2,022,106,720.80 and 428,019,492.80 is: 642,029,239.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,348,071,147.20 : 2,022,106,720.80 = 428,019,492.80 : x
  2. Step 2: Convert to fraction form
    1,348,071,147.20/2,022,106,720.80 = 428,019,492.80/x
  3. Step 3: Cross multiply
    1,348,071,147.20x = 2,022,106,720.80 × 428,019,492.80
  4. Step 4: Simplify right side
    1,348,071,147.20x = 865,501,093,024,287,232
  5. Step 5: Solve for x
    x = 865,501,093,024,287,232/1,348,071,147.20
  6. Step 6: Final answer
    x = 642,029,239.20

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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.