Home / 157,522,697.90-217,384,802.90-86,958,140.97

Finding the Fourth Proportional to 157,522,697.90, 217,384,802.90 and 86,958,140.97

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Solution

The fourth proportional to 157,522,697.90, 217,384,802.90 and 86,958,140.97 is: 120,004,155.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,522,697.90 : 217,384,802.90 = 86,958,140.97 : x
  2. Step 2: Convert to fraction form
    157,522,697.90/217,384,802.90 = 86,958,140.97/x
  3. Step 3: Cross multiply
    157,522,697.90x = 217,384,802.90 × 86,958,140.97
  4. Step 4: Simplify right side
    157,522,697.90x = 18,903,378,334,797,572
  5. Step 5: Solve for x
    x = 18,903,378,334,797,572/157,522,697.90
  6. Step 6: Final answer
    x = 120,004,155.50

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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.