Home / 21,097,760,459.60-31,646,640,689.40-6,378,053,733.20

Finding the Fourth Proportional to 21,097,760,459.60, 31,646,640,689.40 and 6,378,053,733.20

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Solution

The fourth proportional to 21,097,760,459.60, 31,646,640,689.40 and 6,378,053,733.20 is: 9,567,080,599.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,097,760,459.60 : 31,646,640,689.40 = 6,378,053,733.20 : x
  2. Step 2: Convert to fraction form
    21,097,760,459.60/31,646,640,689.40 = 6,378,053,733.20/x
  3. Step 3: Cross multiply
    21,097,760,459.60x = 31,646,640,689.40 × 6,378,053,733.20
  4. Step 4: Simplify right side
    21,097,760,459.60x = 201,843,974,792,266,711,040
  5. Step 5: Solve for x
    x = 201,843,974,792,266,711,040/21,097,760,459.60
  6. Step 6: Final answer
    x = 9,567,080,599.80

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Double scale
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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.