Home / 418,472,044,599.82-627,807,831,543.65-135,490,973,137.78

Finding the Fourth Proportional to 418,472,044,599.82, 627,807,831,543.65 and 135,490,973,137.78

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Solution

The fourth proportional to 418,472,044,599.82, 627,807,831,543.65 and 135,490,973,137.78 is: 203,268,761,048.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,472,044,599.82 : 627,807,831,543.65 = 135,490,973,137.78 : x
  2. Step 2: Convert to fraction form
    418,472,044,599.82/627,807,831,543.65 = 135,490,973,137.78/x
  3. Step 3: Cross multiply
    418,472,044,599.82x = 627,807,831,543.65 × 135,490,973,137.78
  4. Step 4: Simplify right side
    418,472,044,599.82x = 85,062,294,039,368,587,804,672
  5. Step 5: Solve for x
    x = 85,062,294,039,368,587,804,672/418,472,044,599.82
  6. Step 6: Final answer
    x = 203,268,761,048.81

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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.