Home / 145,237,054.72-217,871,525.12-72,472,149.76

Finding the Fourth Proportional to 145,237,054.72, 217,871,525.12 and 72,472,149.76

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Solution

The fourth proportional to 145,237,054.72, 217,871,525.12 and 72,472,149.76 is: 108,716,180.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,237,054.72 : 217,871,525.12 = 72,472,149.76 : x
  2. Step 2: Convert to fraction form
    145,237,054.72/217,871,525.12 = 72,472,149.76/x
  3. Step 3: Cross multiply
    145,237,054.72x = 217,871,525.12 × 72,472,149.76
  4. Step 4: Simplify right side
    145,237,054.72x = 15,789,617,796,936,244
  5. Step 5: Solve for x
    x = 15,789,617,796,936,244/145,237,054.72
  6. Step 6: Final answer
    x = 108,716,180.09

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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.