Home / 20,833,548.59-31,218,940.12-18,563,139.15

Finding the Fourth Proportional to 20,833,548.59, 31,218,940.12 and 18,563,139.15

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Solution

The fourth proportional to 20,833,548.59, 31,218,940.12 and 18,563,139.15 is: 27,816,746.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,833,548.59 : 31,218,940.12 = 18,563,139.15 : x
  2. Step 2: Convert to fraction form
    20,833,548.59/31,218,940.12 = 18,563,139.15/x
  3. Step 3: Cross multiply
    20,833,548.59x = 31,218,940.12 × 18,563,139.15
  4. Step 4: Simplify right side
    20,833,548.59x = 579,521,529,399,598.75
  5. Step 5: Solve for x
    x = 579,521,529,399,598.75/20,833,548.59
  6. Step 6: Final answer
    x = 27,816,746.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.