Home / 85,215,643.20-127,886,450.40-56,452,219.20

Finding the Fourth Proportional to 85,215,643.20, 127,886,450.40 and 56,452,219.20

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Solution

The fourth proportional to 85,215,643.20, 127,886,450.40 and 56,452,219.20 is: 84,720,054.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,215,643.20 : 127,886,450.40 = 56,452,219.20 : x
  2. Step 2: Convert to fraction form
    85,215,643.20/127,886,450.40 = 56,452,219.20/x
  3. Step 3: Cross multiply
    85,215,643.20x = 127,886,450.40 × 56,452,219.20
  4. Step 4: Simplify right side
    85,215,643.20x = 7,219,473,930,690,728
  5. Step 5: Solve for x
    x = 7,219,473,930,690,728/85,215,643.20
  6. Step 6: Final answer
    x = 84,720,054.44

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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.