Home / 1,721,820,692-2,582,252,819.76-477,965,188.64

Finding the Fourth Proportional to 1,721,820,692, 2,582,252,819.76 and 477,965,188.64

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Solution

The fourth proportional to 1,721,820,692, 2,582,252,819.76 and 477,965,188.64 is: 716,815,032.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,721,820,692 : 2,582,252,819.76 = 477,965,188.64 : x
  2. Step 2: Convert to fraction form
    1,721,820,692/2,582,252,819.76 = 477,965,188.64/x
  3. Step 3: Cross multiply
    1,721,820,692x = 2,582,252,819.76 × 477,965,188.64
  4. Step 4: Simplify right side
    1,721,820,692x = 1,234,226,956,112,760,320
  5. Step 5: Solve for x
    x = 1,234,226,956,112,760,320/1,721,820,692
  6. Step 6: Final answer
    x = 716,815,032.97

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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.