Home / 1,109,021,719.41-1,663,787,703.60-372,189,401.73

Finding the Fourth Proportional to 1,109,021,719.41, 1,663,787,703.60 and 372,189,401.73

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Solution

The fourth proportional to 1,109,021,719.41, 1,663,787,703.60 and 372,189,401.73 is: 558,369,722.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,109,021,719.41 : 1,663,787,703.60 = 372,189,401.73 : x
  2. Step 2: Convert to fraction form
    1,109,021,719.41/1,663,787,703.60 = 372,189,401.73/x
  3. Step 3: Cross multiply
    1,109,021,719.41x = 1,663,787,703.60 × 372,189,401.73
  4. Step 4: Simplify right side
    1,109,021,719.41x = 619,244,150,008,614,528
  5. Step 5: Solve for x
    x = 619,244,150,008,614,528/1,109,021,719.41
  6. Step 6: Final answer
    x = 558,369,722.77

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Double scale
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1.5x scale

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.