Home / 212,693,956.11-293,541,015.96-123,405,569.55

Finding the Fourth Proportional to 212,693,956.11, 293,541,015.96 and 123,405,569.55

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Solution

The fourth proportional to 212,693,956.11, 293,541,015.96 and 123,405,569.55 is: 170,313,237.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,693,956.11 : 293,541,015.96 = 123,405,569.55 : x
  2. Step 2: Convert to fraction form
    212,693,956.11/293,541,015.96 = 123,405,569.55/x
  3. Step 3: Cross multiply
    212,693,956.11x = 293,541,015.96 × 123,405,569.55
  4. Step 4: Simplify right side
    212,693,956.11x = 36,224,596,260,829,440
  5. Step 5: Solve for x
    x = 36,224,596,260,829,440/212,693,956.11
  6. Step 6: Final answer
    x = 170,313,237.50

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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.