Home / 85,215,730.60-127,823,595.90-71,043,970.60

Finding the Fourth Proportional to 85,215,730.60, 127,823,595.90 and 71,043,970.60

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Solution

The fourth proportional to 85,215,730.60, 127,823,595.90 and 71,043,970.60 is: 106,565,955.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,215,730.60 : 127,823,595.90 = 71,043,970.60 : x
  2. Step 2: Convert to fraction form
    85,215,730.60/127,823,595.90 = 71,043,970.60/x
  3. Step 3: Cross multiply
    85,215,730.60x = 127,823,595.90 × 71,043,970.60
  4. Step 4: Simplify right side
    85,215,730.60x = 9,081,095,789,105,880
  5. Step 5: Solve for x
    x = 9,081,095,789,105,880/85,215,730.60
  6. Step 6: Final answer
    x = 106,565,955.90

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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.