Home / 819,376,730.70-1,229,065,096.05-805,771,841.10

Finding the Fourth Proportional to 819,376,730.70, 1,229,065,096.05 and 805,771,841.10

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Solution

The fourth proportional to 819,376,730.70, 1,229,065,096.05 and 805,771,841.10 is: 1,208,657,761.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,376,730.70 : 1,229,065,096.05 = 805,771,841.10 : x
  2. Step 2: Convert to fraction form
    819,376,730.70/1,229,065,096.05 = 805,771,841.10/x
  3. Step 3: Cross multiply
    819,376,730.70x = 1,229,065,096.05 × 805,771,841.10
  4. Step 4: Simplify right side
    819,376,730.70x = 990,346,045,275,956,864
  5. Step 5: Solve for x
    x = 990,346,045,275,956,864/819,376,730.70
  6. Step 6: Final answer
    x = 1,208,657,761.65

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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.