Home / 38,903,381.14-53,687,900.78-21,261,896.77

Finding the Fourth Proportional to 38,903,381.14, 53,687,900.78 and 21,261,896.77

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Solution

The fourth proportional to 38,903,381.14, 53,687,900.78 and 21,261,896.77 is: 29,342,092.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,903,381.14 : 53,687,900.78 = 21,261,896.77 : x
  2. Step 2: Convert to fraction form
    38,903,381.14/53,687,900.78 = 21,261,896.77/x
  3. Step 3: Cross multiply
    38,903,381.14x = 53,687,900.78 × 21,261,896.77
  4. Step 4: Simplify right side
    38,903,381.14x = 1,141,506,604,182,362.50
  5. Step 5: Solve for x
    x = 1,141,506,604,182,362.50/38,903,381.14
  6. Step 6: Final answer
    x = 29,342,092.40

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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.