Home / 1,109,021,720.91-1,663,787,705.85-372,189,403.23

Finding the Fourth Proportional to 1,109,021,720.91, 1,663,787,705.85 and 372,189,403.23

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Solution

The fourth proportional to 1,109,021,720.91, 1,663,787,705.85 and 372,189,403.23 is: 558,369,725.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,109,021,720.91 : 1,663,787,705.85 = 372,189,403.23 : x
  2. Step 2: Convert to fraction form
    1,109,021,720.91/1,663,787,705.85 = 372,189,403.23/x
  3. Step 3: Cross multiply
    1,109,021,720.91x = 1,663,787,705.85 × 372,189,403.23
  4. Step 4: Simplify right side
    1,109,021,720.91x = 619,244,153,341,722,240
  5. Step 5: Solve for x
    x = 619,244,153,341,722,240/1,109,021,720.91
  6. Step 6: Final answer
    x = 558,369,725.02

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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.