Home / 209,838,659.60-314,757,989.40-66,231,491.60

Finding the Fourth Proportional to 209,838,659.60, 314,757,989.40 and 66,231,491.60

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Solution

The fourth proportional to 209,838,659.60, 314,757,989.40 and 66,231,491.60 is: 99,347,237.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,838,659.60 : 314,757,989.40 = 66,231,491.60 : x
  2. Step 2: Convert to fraction form
    209,838,659.60/314,757,989.40 = 66,231,491.60/x
  3. Step 3: Cross multiply
    209,838,659.60x = 314,757,989.40 × 66,231,491.60
  4. Step 4: Simplify right side
    209,838,659.60x = 20,846,891,130,978,988
  5. Step 5: Solve for x
    x = 20,846,891,130,978,988/209,838,659.60
  6. Step 6: Final answer
    x = 99,347,237.40

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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.