Home / 137,272,742.87-205,916,896.17-43,907,915.18

Finding the Fourth Proportional to 137,272,742.87, 205,916,896.17 and 43,907,915.18

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Solution

The fourth proportional to 137,272,742.87, 205,916,896.17 and 43,907,915.18 is: 65,864,361.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,272,742.87 : 205,916,896.17 = 43,907,915.18 : x
  2. Step 2: Convert to fraction form
    137,272,742.87/205,916,896.17 = 43,907,915.18/x
  3. Step 3: Cross multiply
    137,272,742.87x = 205,916,896.17 × 43,907,915.18
  4. Step 4: Simplify right side
    137,272,742.87x = 9,041,381,611,899,118
  5. Step 5: Solve for x
    x = 9,041,381,611,899,118/137,272,742.87
  6. Step 6: Final answer
    x = 65,864,361.87

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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.