Home / 385,490,880,608.60-531,982,235,800.15-211,894,973,176.25

Finding the Fourth Proportional to 385,490,880,608.60, 531,982,235,800.15 and 211,894,973,176.25

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Solution

The fourth proportional to 385,490,880,608.60, 531,982,235,800.15 and 211,894,973,176.25 is: 292,417,712,728.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,490,880,608.60 : 531,982,235,800.15 = 211,894,973,176.25 : x
  2. Step 2: Convert to fraction form
    385,490,880,608.60/531,982,235,800.15 = 211,894,973,176.25/x
  3. Step 3: Cross multiply
    385,490,880,608.60x = 531,982,235,800.15 × 211,894,973,176.25
  4. Step 4: Simplify right side
    385,490,880,608.60x = 112,724,361,585,114,287,702,016
  5. Step 5: Solve for x
    x = 112,724,361,585,114,287,702,016/385,490,880,608.60
  6. Step 6: Final answer
    x = 292,417,712,728.12

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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.