Home / 1,036,253,718.86-1,555,079,972.10-405,907,589.62

Finding the Fourth Proportional to 1,036,253,718.86, 1,555,079,972.10 and 405,907,589.62

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Solution

The fourth proportional to 1,036,253,718.86, 1,555,079,972.10 and 405,907,589.62 is: 609,135,341.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,036,253,718.86 : 1,555,079,972.10 = 405,907,589.62 : x
  2. Step 2: Convert to fraction form
    1,036,253,718.86/1,555,079,972.10 = 405,907,589.62/x
  3. Step 3: Cross multiply
    1,036,253,718.86x = 1,555,079,972.10 × 405,907,589.62
  4. Step 4: Simplify right side
    1,036,253,718.86x = 631,218,763,141,447,808
  5. Step 5: Solve for x
    x = 631,218,763,141,447,808/1,036,253,718.86
  6. Step 6: Final answer
    x = 609,135,341.72

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Double scale
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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.