Home / 7,338,643.80-11,007,965.70-3,937,421.40

Finding the Fourth Proportional to 7,338,643.80, 11,007,965.70 and 3,937,421.40

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Solution

The fourth proportional to 7,338,643.80, 11,007,965.70 and 3,937,421.40 is: 5,906,132.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,338,643.80 : 11,007,965.70 = 3,937,421.40 : x
  2. Step 2: Convert to fraction form
    7,338,643.80/11,007,965.70 = 3,937,421.40/x
  3. Step 3: Cross multiply
    7,338,643.80x = 11,007,965.70 × 3,937,421.40
  4. Step 4: Simplify right side
    7,338,643.80x = 43,342,999,717,645.98
  5. Step 5: Solve for x
    x = 43,342,999,717,645.98/7,338,643.80
  6. Step 6: Final answer
    x = 5,906,132.10

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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.