Home / 28,058,221.92-42,088,965.84-7,865,038.56

Finding the Fourth Proportional to 28,058,221.92, 42,088,965.84 and 7,865,038.56

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Solution

The fourth proportional to 28,058,221.92, 42,088,965.84 and 7,865,038.56 is: 11,798,015.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,058,221.92 : 42,088,965.84 = 7,865,038.56 : x
  2. Step 2: Convert to fraction form
    28,058,221.92/42,088,965.84 = 7,865,038.56/x
  3. Step 3: Cross multiply
    28,058,221.92x = 42,088,965.84 × 7,865,038.56
  4. Step 4: Simplify right side
    28,058,221.92x = 331,031,339,282,122.81
  5. Step 5: Solve for x
    x = 331,031,339,282,122.81/28,058,221.92
  6. Step 6: Final answer
    x = 11,798,015.58

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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.