Home / 986,898,172.05-1,480,347,258.08-831,929,976.45

Finding the Fourth Proportional to 986,898,172.05, 1,480,347,258.08 and 831,929,976.45

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Solution

The fourth proportional to 986,898,172.05, 1,480,347,258.08 and 831,929,976.45 is: 1,247,894,964.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,898,172.05 : 1,480,347,258.08 = 831,929,976.45 : x
  2. Step 2: Convert to fraction form
    986,898,172.05/1,480,347,258.08 = 831,929,976.45/x
  3. Step 3: Cross multiply
    986,898,172.05x = 1,480,347,258.08 × 831,929,976.45
  4. Step 4: Simplify right side
    986,898,172.05x = 1,231,545,259,548,156,928
  5. Step 5: Solve for x
    x = 1,231,545,259,548,156,928/986,898,172.05
  6. Step 6: Final answer
    x = 1,247,894,964.68

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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.