Home / 4,458,456,205.20-6,687,684,307.80-2,989,128,128.40

Finding the Fourth Proportional to 4,458,456,205.20, 6,687,684,307.80 and 2,989,128,128.40

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Solution

The fourth proportional to 4,458,456,205.20, 6,687,684,307.80 and 2,989,128,128.40 is: 4,483,692,192.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,458,456,205.20 : 6,687,684,307.80 = 2,989,128,128.40 : x
  2. Step 2: Convert to fraction form
    4,458,456,205.20/6,687,684,307.80 = 2,989,128,128.40/x
  3. Step 3: Cross multiply
    4,458,456,205.20x = 6,687,684,307.80 × 2,989,128,128.40
  4. Step 4: Simplify right side
    4,458,456,205.20x = 19,990,345,278,304,264,192
  5. Step 5: Solve for x
    x = 19,990,345,278,304,264,192/4,458,456,205.20
  6. Step 6: Final answer
    x = 4,483,692,192.60

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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.