Home / 39,022,865.16-53,849,433.06-21,618,172.32

Finding the Fourth Proportional to 39,022,865.16, 53,849,433.06 and 21,618,172.32

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Solution

The fourth proportional to 39,022,865.16, 53,849,433.06 and 21,618,172.32 is: 29,831,902.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,022,865.16 : 53,849,433.06 = 21,618,172.32 : x
  2. Step 2: Convert to fraction form
    39,022,865.16/53,849,433.06 = 21,618,172.32/x
  3. Step 3: Cross multiply
    39,022,865.16x = 53,849,433.06 × 21,618,172.32
  4. Step 4: Simplify right side
    39,022,865.16x = 1,164,126,323,225,385
  5. Step 5: Solve for x
    x = 1,164,126,323,225,385/39,022,865.16
  6. Step 6: Final answer
    x = 29,831,902.87

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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.