Home / 19,279,842,798.78-28,906,561,653.12-9,818,171,530.38

Finding the Fourth Proportional to 19,279,842,798.78, 28,906,561,653.12 and 9,818,171,530.38

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Solution

The fourth proportional to 19,279,842,798.78, 28,906,561,653.12 and 9,818,171,530.38 is: 14,720,533,960.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,279,842,798.78 : 28,906,561,653.12 = 9,818,171,530.38 : x
  2. Step 2: Convert to fraction form
    19,279,842,798.78/28,906,561,653.12 = 9,818,171,530.38/x
  3. Step 3: Cross multiply
    19,279,842,798.78x = 28,906,561,653.12 × 9,818,171,530.38
  4. Step 4: Simplify right side
    19,279,842,798.78x = 283,809,580,663,836,966,912
  5. Step 5: Solve for x
    x = 283,809,580,663,836,966,912/19,279,842,798.78
  6. Step 6: Final answer
    x = 14,720,533,960.05

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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.