Home / 20,710,428.50-28,574,057.75-12,006,864.43

Finding the Fourth Proportional to 20,710,428.50, 28,574,057.75 and 12,006,864.43

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Solution

The fourth proportional to 20,710,428.50, 28,574,057.75 and 12,006,864.43 is: 16,565,801.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,710,428.50 : 28,574,057.75 = 12,006,864.43 : x
  2. Step 2: Convert to fraction form
    20,710,428.50/28,574,057.75 = 12,006,864.43/x
  3. Step 3: Cross multiply
    20,710,428.50x = 28,574,057.75 × 12,006,864.43
  4. Step 4: Simplify right side
    20,710,428.50x = 343,084,837,487,771.38
  5. Step 5: Solve for x
    x = 343,084,837,487,771.38/20,710,428.50
  6. Step 6: Final answer
    x = 16,565,801.01

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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.