Home / 7,138,530.12-10,706,419.78-2,020,920.96

Finding the Fourth Proportional to 7,138,530.12, 10,706,419.78 and 2,020,920.96

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Solution

The fourth proportional to 7,138,530.12, 10,706,419.78 and 2,020,920.96 is: 3,030,992.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,138,530.12 : 10,706,419.78 = 2,020,920.96 : x
  2. Step 2: Convert to fraction form
    7,138,530.12/10,706,419.78 = 2,020,920.96/x
  3. Step 3: Cross multiply
    7,138,530.12x = 10,706,419.78 × 2,020,920.96
  4. Step 4: Simplify right side
    7,138,530.12x = 21,636,828,139,960.59
  5. Step 5: Solve for x
    x = 21,636,828,139,960.59/7,138,530.12
  6. Step 6: Final answer
    x = 3,030,992.06

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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.