Home / 81,648,102.60-122,472,153.90-43,289,872.20

Finding the Fourth Proportional to 81,648,102.60, 122,472,153.90 and 43,289,872.20

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Solution

The fourth proportional to 81,648,102.60, 122,472,153.90 and 43,289,872.20 is: 64,934,808.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,648,102.60 : 122,472,153.90 = 43,289,872.20 : x
  2. Step 2: Convert to fraction form
    81,648,102.60/122,472,153.90 = 43,289,872.20/x
  3. Step 3: Cross multiply
    81,648,102.60x = 122,472,153.90 × 43,289,872.20
  4. Step 4: Simplify right side
    81,648,102.60x = 5,301,803,890,389,732
  5. Step 5: Solve for x
    x = 5,301,803,890,389,732/81,648,102.60
  6. Step 6: Final answer
    x = 64,934,808.30

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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.