Home / 38,903,381.89-53,687,901.81-21,261,897.52

Finding the Fourth Proportional to 38,903,381.89, 53,687,901.81 and 21,261,897.52

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Solution

The fourth proportional to 38,903,381.89, 53,687,901.81 and 21,261,897.52 is: 29,342,093.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,903,381.89 : 53,687,901.81 = 21,261,897.52 : x
  2. Step 2: Convert to fraction form
    38,903,381.89/53,687,901.81 = 21,261,897.52/x
  3. Step 3: Cross multiply
    38,903,381.89x = 53,687,901.81 × 21,261,897.52
  4. Step 4: Simplify right side
    38,903,381.89x = 1,141,506,666,348,042.50
  5. Step 5: Solve for x
    x = 1,141,506,666,348,042.50/38,903,381.89
  6. Step 6: Final answer
    x = 29,342,093.43

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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.