Home / 385,490,880,608.10-531,982,235,799.45-211,894,973,175.75

Finding the Fourth Proportional to 385,490,880,608.10, 531,982,235,799.45 and 211,894,973,175.75

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Solution

The fourth proportional to 385,490,880,608.10, 531,982,235,799.45 and 211,894,973,175.75 is: 292,417,712,727.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,490,880,608.10 : 531,982,235,799.45 = 211,894,973,175.75 : x
  2. Step 2: Convert to fraction form
    385,490,880,608.10/531,982,235,799.45 = 211,894,973,175.75/x
  3. Step 3: Cross multiply
    385,490,880,608.10x = 531,982,235,799.45 × 211,894,973,175.75
  4. Step 4: Simplify right side
    385,490,880,608.10x = 112,724,361,584,699,974,352,896
  5. Step 5: Solve for x
    x = 112,724,361,584,699,974,352,896/385,490,880,608.10
  6. Step 6: Final answer
    x = 292,417,712,727.42

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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.