Home / 66,432,071.40-99,648,107.10-55,909,539.60

Finding the Fourth Proportional to 66,432,071.40, 99,648,107.10 and 55,909,539.60

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Solution

The fourth proportional to 66,432,071.40, 99,648,107.10 and 55,909,539.60 is: 83,864,309.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,432,071.40 : 99,648,107.10 = 55,909,539.60 : x
  2. Step 2: Convert to fraction form
    66,432,071.40/99,648,107.10 = 55,909,539.60/x
  3. Step 3: Cross multiply
    66,432,071.40x = 99,648,107.10 × 55,909,539.60
  4. Step 4: Simplify right side
    66,432,071.40x = 5,571,279,789,972,491
  5. Step 5: Solve for x
    x = 5,571,279,789,972,491/66,432,071.40
  6. Step 6: Final answer
    x = 83,864,309.40

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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.