Home / 1,993,071,389.20-2,989,607,083.80-1,878,280,133.20

Finding the Fourth Proportional to 1,993,071,389.20, 2,989,607,083.80 and 1,878,280,133.20

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Solution

The fourth proportional to 1,993,071,389.20, 2,989,607,083.80 and 1,878,280,133.20 is: 2,817,420,199.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,993,071,389.20 : 2,989,607,083.80 = 1,878,280,133.20 : x
  2. Step 2: Convert to fraction form
    1,993,071,389.20/2,989,607,083.80 = 1,878,280,133.20/x
  3. Step 3: Cross multiply
    1,993,071,389.20x = 2,989,607,083.80 × 1,878,280,133.20
  4. Step 4: Simplify right side
    1,993,071,389.20x = 5,615,319,591,575,528,448
  5. Step 5: Solve for x
    x = 5,615,319,591,575,528,448/1,993,071,389.20
  6. Step 6: Final answer
    x = 2,817,420,199.80

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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.