Home / 861,905,349.23-1,293,039,598.32-279,594,126.59

Finding the Fourth Proportional to 861,905,349.23, 1,293,039,598.32 and 279,594,126.59

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Solution

The fourth proportional to 861,905,349.23, 1,293,039,598.32 and 279,594,126.59 is: 419,450,090.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,905,349.23 : 1,293,039,598.32 = 279,594,126.59 : x
  2. Step 2: Convert to fraction form
    861,905,349.23/1,293,039,598.32 = 279,594,126.59/x
  3. Step 3: Cross multiply
    861,905,349.23x = 1,293,039,598.32 × 279,594,126.59
  4. Step 4: Simplify right side
    861,905,349.23x = 361,526,277,132,099,584
  5. Step 5: Solve for x
    x = 361,526,277,132,099,584/861,905,349.23
  6. Step 6: Final answer
    x = 419,450,090.96

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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.