Home / 57,246,321.66-78,999,864.07-31,140,777.21

Finding the Fourth Proportional to 57,246,321.66, 78,999,864.07 and 31,140,777.21

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Solution

The fourth proportional to 57,246,321.66, 78,999,864.07 and 31,140,777.21 is: 42,974,240.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,246,321.66 : 78,999,864.07 = 31,140,777.21 : x
  2. Step 2: Convert to fraction form
    57,246,321.66/78,999,864.07 = 31,140,777.21/x
  3. Step 3: Cross multiply
    57,246,321.66x = 78,999,864.07 × 31,140,777.21
  4. Step 4: Simplify right side
    57,246,321.66x = 2,460,117,166,624,153.50
  5. Step 5: Solve for x
    x = 2,460,117,166,624,153.50/57,246,321.66
  6. Step 6: Final answer
    x = 42,974,240.01

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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.