Home / 285,016,666.47-427,589,465.36-153,856,126.73

Finding the Fourth Proportional to 285,016,666.47, 427,589,465.36 and 153,856,126.73

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Solution

The fourth proportional to 285,016,666.47, 427,589,465.36 and 153,856,126.73 is: 230,818,989.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,016,666.47 : 427,589,465.36 = 153,856,126.73 : x
  2. Step 2: Convert to fraction form
    285,016,666.47/427,589,465.36 = 153,856,126.73/x
  3. Step 3: Cross multiply
    285,016,666.47x = 427,589,465.36 × 153,856,126.73
  4. Step 4: Simplify right side
    285,016,666.47x = 65,787,258,967,933,880
  5. Step 5: Solve for x
    x = 65,787,258,967,933,880/285,016,666.47
  6. Step 6: Final answer
    x = 230,818,989.58

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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.