Home / 7,978,176,644.40-11,967,264,966.60-7,325,141,943.60

Finding the Fourth Proportional to 7,978,176,644.40, 11,967,264,966.60 and 7,325,141,943.60

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Solution

The fourth proportional to 7,978,176,644.40, 11,967,264,966.60 and 7,325,141,943.60 is: 10,987,712,915.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,978,176,644.40 : 11,967,264,966.60 = 7,325,141,943.60 : x
  2. Step 2: Convert to fraction form
    7,978,176,644.40/11,967,264,966.60 = 7,325,141,943.60/x
  3. Step 3: Cross multiply
    7,978,176,644.40x = 11,967,264,966.60 × 7,325,141,943.60
  4. Step 4: Simplify right side
    7,978,176,644.40x = 87,661,914,557,016,522,752
  5. Step 5: Solve for x
    x = 87,661,914,557,016,522,752/7,978,176,644.40
  6. Step 6: Final answer
    x = 10,987,712,915.40

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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.