Home / 39,142,307.45-54,016,510.05-21,738,652.16

Finding the Fourth Proportional to 39,142,307.45, 54,016,510.05 and 21,738,652.16

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Solution

The fourth proportional to 39,142,307.45, 54,016,510.05 and 21,738,652.16 is: 29,999,409.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,142,307.45 : 54,016,510.05 = 21,738,652.16 : x
  2. Step 2: Convert to fraction form
    39,142,307.45/54,016,510.05 = 21,738,652.16/x
  3. Step 3: Cross multiply
    39,142,307.45x = 54,016,510.05 × 21,738,652.16
  4. Step 4: Simplify right side
    39,142,307.45x = 1,174,246,122,495,318.50
  5. Step 5: Solve for x
    x = 1,174,246,122,495,318.50/39,142,307.45
  6. Step 6: Final answer
    x = 29,999,409.82

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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.