Home / 1,993,061,442.70-2,989,581,289.20-812,637,290.62

Finding the Fourth Proportional to 1,993,061,442.70, 2,989,581,289.20 and 812,637,290.62

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Solution

The fourth proportional to 1,993,061,442.70, 2,989,581,289.20 and 812,637,290.62 is: 1,218,951,501.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,993,061,442.70 : 2,989,581,289.20 = 812,637,290.62 : x
  2. Step 2: Convert to fraction form
    1,993,061,442.70/2,989,581,289.20 = 812,637,290.62/x
  3. Step 3: Cross multiply
    1,993,061,442.70x = 2,989,581,289.20 × 812,637,290.62
  4. Step 4: Simplify right side
    1,993,061,442.70x = 2,429,445,238,943,734,272
  5. Step 5: Solve for x
    x = 2,429,445,238,943,734,272/1,993,061,442.70
  6. Step 6: Final answer
    x = 1,218,951,501.89

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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.