Home / 217,559,809.20-325,583,886.60-199,419,956.40

Finding the Fourth Proportional to 217,559,809.20, 325,583,886.60 and 199,419,956.40

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Solution

The fourth proportional to 217,559,809.20, 325,583,886.60 and 199,419,956.40 is: 298,437,127.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,559,809.20 : 325,583,886.60 = 199,419,956.40 : x
  2. Step 2: Convert to fraction form
    217,559,809.20/325,583,886.60 = 199,419,956.40/x
  3. Step 3: Cross multiply
    217,559,809.20x = 325,583,886.60 × 199,419,956.40
  4. Step 4: Simplify right side
    217,559,809.20x = 64,927,924,470,314,552
  5. Step 5: Solve for x
    x = 64,927,924,470,314,552/217,559,809.20
  6. Step 6: Final answer
    x = 298,437,127.28

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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.