Home / 910,685,468.86-1,256,745,682.66-492,997,446.62

Finding the Fourth Proportional to 910,685,468.86, 1,256,745,682.66 and 492,997,446.62

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Solution

The fourth proportional to 910,685,468.86, 1,256,745,682.66 and 492,997,446.62 is: 680,336,333.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,685,468.86 : 1,256,745,682.66 = 492,997,446.62 : x
  2. Step 2: Convert to fraction form
    910,685,468.86/1,256,745,682.66 = 492,997,446.62/x
  3. Step 3: Cross multiply
    910,685,468.86x = 1,256,745,682.66 × 492,997,446.62
  4. Step 4: Simplify right side
    910,685,468.86x = 619,572,412,602,088,832
  5. Step 5: Solve for x
    x = 619,572,412,602,088,832/910,685,468.86
  6. Step 6: Final answer
    x = 680,336,333.22

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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.