Home / 151,257,428.47-208,831,797.78-123,446,579.66

Finding the Fourth Proportional to 151,257,428.47, 208,831,797.78 and 123,446,579.66

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Solution

The fourth proportional to 151,257,428.47, 208,831,797.78 and 123,446,579.66 is: 170,435,074.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,257,428.47 : 208,831,797.78 = 123,446,579.66 : x
  2. Step 2: Convert to fraction form
    151,257,428.47/208,831,797.78 = 123,446,579.66/x
  3. Step 3: Cross multiply
    151,257,428.47x = 208,831,797.78 × 123,446,579.66
  4. Step 4: Simplify right side
    151,257,428.47x = 25,779,571,159,145,624
  5. Step 5: Solve for x
    x = 25,779,571,159,145,624/151,257,428.47
  6. Step 6: Final answer
    x = 170,435,074.96

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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.