Home / 910,685,464.86-1,256,745,677.13-492,997,442.61

Finding the Fourth Proportional to 910,685,464.86, 1,256,745,677.13 and 492,997,442.61

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Solution

The fourth proportional to 910,685,464.86, 1,256,745,677.13 and 492,997,442.61 is: 680,336,327.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,685,464.86 : 1,256,745,677.13 = 492,997,442.61 : x
  2. Step 2: Convert to fraction form
    910,685,464.86/1,256,745,677.13 = 492,997,442.61/x
  3. Step 3: Cross multiply
    910,685,464.86x = 1,256,745,677.13 × 492,997,442.61
  4. Step 4: Simplify right side
    910,685,464.86x = 619,572,404,836,262,784
  5. Step 5: Solve for x
    x = 619,572,404,836,262,784/910,685,464.86
  6. Step 6: Final answer
    x = 680,336,327.68

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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.