Home / 57,170,990.46-78,896,466.66-31,065,508.20

Finding the Fourth Proportional to 57,170,990.46, 78,896,466.66 and 31,065,508.20

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Solution

The fourth proportional to 57,170,990.46, 78,896,466.66 and 31,065,508.20 is: 42,870,672.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,170,990.46 : 78,896,466.66 = 31,065,508.20 : x
  2. Step 2: Convert to fraction form
    57,170,990.46/78,896,466.66 = 31,065,508.20/x
  3. Step 3: Cross multiply
    57,170,990.46x = 78,896,466.66 × 31,065,508.20
  4. Step 4: Simplify right side
    57,170,990.46x = 2,450,958,831,977,256.50
  5. Step 5: Solve for x
    x = 2,450,958,831,977,256.50/57,170,990.46
  6. Step 6: Final answer
    x = 42,870,672.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.