Home / 9,991,799.28-13,789,484.12-7,943,717.01

Finding the Fourth Proportional to 9,991,799.28, 13,789,484.12 and 7,943,717.01

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Solution

The fourth proportional to 9,991,799.28, 13,789,484.12 and 7,943,717.01 is: 10,962,966.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,991,799.28 : 13,789,484.12 = 7,943,717.01 : x
  2. Step 2: Convert to fraction form
    9,991,799.28/13,789,484.12 = 7,943,717.01/x
  3. Step 3: Cross multiply
    9,991,799.28x = 13,789,484.12 × 7,943,717.01
  4. Step 4: Simplify right side
    9,991,799.28x = 109,539,759,634,738.75
  5. Step 5: Solve for x
    x = 109,539,759,634,738.75/9,991,799.28
  6. Step 6: Final answer
    x = 10,962,966.39

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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.