Home / 21,041,820.80-29,057,766.74-19,895,465.10

Finding the Fourth Proportional to 21,041,820.80, 29,057,766.74 and 19,895,465.10

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Solution

The fourth proportional to 21,041,820.80, 29,057,766.74 and 19,895,465.10 is: 27,474,703.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,041,820.80 : 29,057,766.74 = 19,895,465.10 : x
  2. Step 2: Convert to fraction form
    21,041,820.80/29,057,766.74 = 19,895,465.10/x
  3. Step 3: Cross multiply
    21,041,820.80x = 29,057,766.74 × 19,895,465.10
  4. Step 4: Simplify right side
    21,041,820.80x = 578,117,784,059,610.75
  5. Step 5: Solve for x
    x = 578,117,784,059,610.75/21,041,820.80
  6. Step 6: Final answer
    x = 27,474,703.33

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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.