Home / 57,091,149.51-78,785,864.09-30,985,667.67

Finding the Fourth Proportional to 57,091,149.51, 78,785,864.09 and 30,985,667.67

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Solution

The fourth proportional to 57,091,149.51, 78,785,864.09 and 30,985,667.67 is: 42,760,263.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,091,149.51 : 78,785,864.09 = 30,985,667.67 : x
  2. Step 2: Convert to fraction form
    57,091,149.51/78,785,864.09 = 30,985,667.67/x
  3. Step 3: Cross multiply
    57,091,149.51x = 78,785,864.09 × 30,985,667.67
  4. Step 4: Simplify right side
    57,091,149.51x = 2,441,232,601,786,527
  5. Step 5: Solve for x
    x = 2,441,232,601,786,527/57,091,149.51
  6. Step 6: Final answer
    x = 42,760,263.59

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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.