Home / 217,038,487.40-325,935,644.70-115,001,815.40

Finding the Fourth Proportional to 217,038,487.40, 325,935,644.70 and 115,001,815.40

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Solution

The fourth proportional to 217,038,487.40, 325,935,644.70 and 115,001,815.40 is: 172,702,967.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,038,487.40 : 325,935,644.70 = 115,001,815.40 : x
  2. Step 2: Convert to fraction form
    217,038,487.40/325,935,644.70 = 115,001,815.40/x
  3. Step 3: Cross multiply
    217,038,487.40x = 325,935,644.70 × 115,001,815.40
  4. Step 4: Simplify right side
    217,038,487.40x = 37,483,190,844,069,392
  5. Step 5: Solve for x
    x = 37,483,190,844,069,392/217,038,487.40
  6. Step 6: Final answer
    x = 172,702,967.54

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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.