Home / 15,933,386,689.49-21,990,001,739.79-9,068,452,428.44

Finding the Fourth Proportional to 15,933,386,689.49, 21,990,001,739.79 and 9,068,452,428.44

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Solution

The fourth proportional to 15,933,386,689.49, 21,990,001,739.79 and 9,068,452,428.44 is: 12,515,561,729.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,933,386,689.49 : 21,990,001,739.79 = 9,068,452,428.44 : x
  2. Step 2: Convert to fraction form
    15,933,386,689.49/21,990,001,739.79 = 9,068,452,428.44/x
  3. Step 3: Cross multiply
    15,933,386,689.49x = 21,990,001,739.79 × 9,068,452,428.44
  4. Step 4: Simplify right side
    15,933,386,689.49x = 199,415,284,678,598,459,392
  5. Step 5: Solve for x
    x = 199,415,284,678,598,459,392/15,933,386,689.49
  6. Step 6: Final answer
    x = 12,515,561,729.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.