Home / 2,712,955,631.78-4,068,982,086.30-821,702,151.17

Finding the Fourth Proportional to 2,712,955,631.78, 4,068,982,086.30 and 821,702,151.17

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Solution

The fourth proportional to 2,712,955,631.78, 4,068,982,086.30 and 821,702,151.17 is: 1,232,416,518.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,712,955,631.78 : 4,068,982,086.30 = 821,702,151.17 : x
  2. Step 2: Convert to fraction form
    2,712,955,631.78/4,068,982,086.30 = 821,702,151.17/x
  3. Step 3: Cross multiply
    2,712,955,631.78x = 4,068,982,086.30 × 821,702,151.17
  4. Step 4: Simplify right side
    2,712,955,631.78x = 3,343,491,333,376,695,808
  5. Step 5: Solve for x
    x = 3,343,491,333,376,695,808/2,712,955,631.78
  6. Step 6: Final answer
    x = 1,232,416,518.06

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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.