Home / 85,420,221.36-128,152,172.88-24,835,947.36

Finding the Fourth Proportional to 85,420,221.36, 128,152,172.88 and 24,835,947.36

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Solution

The fourth proportional to 85,420,221.36, 128,152,172.88 and 24,835,947.36 is: 37,260,271.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,420,221.36 : 128,152,172.88 = 24,835,947.36 : x
  2. Step 2: Convert to fraction form
    85,420,221.36/128,152,172.88 = 24,835,947.36/x
  3. Step 3: Cross multiply
    85,420,221.36x = 128,152,172.88 × 24,835,947.36
  4. Step 4: Simplify right side
    85,420,221.36x = 3,182,780,619,717,299.50
  5. Step 5: Solve for x
    x = 3,182,780,619,717,299.50/85,420,221.36
  6. Step 6: Final answer
    x = 37,260,271.27

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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.