Home / 910,685,464.11-1,256,745,676.10-492,997,441.86

Finding the Fourth Proportional to 910,685,464.11, 1,256,745,676.10 and 492,997,441.86

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Solution

The fourth proportional to 910,685,464.11, 1,256,745,676.10 and 492,997,441.86 is: 680,336,326.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,685,464.11 : 1,256,745,676.10 = 492,997,441.86 : x
  2. Step 2: Convert to fraction form
    910,685,464.11/1,256,745,676.10 = 492,997,441.86/x
  3. Step 3: Cross multiply
    910,685,464.11x = 1,256,745,676.10 × 492,997,441.86
  4. Step 4: Simplify right side
    910,685,464.11x = 619,572,403,383,451,136
  5. Step 5: Solve for x
    x = 619,572,403,383,451,136/910,685,464.11
  6. Step 6: Final answer
    x = 680,336,326.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.