Home / 7,000,780.12-9,661,019.34-3,903,266.68

Finding the Fourth Proportional to 7,000,780.12, 9,661,019.34 and 3,903,266.68

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Solution

The fourth proportional to 7,000,780.12, 9,661,019.34 and 3,903,266.68 is: 5,386,476.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,000,780.12 : 9,661,019.34 = 3,903,266.68 : x
  2. Step 2: Convert to fraction form
    7,000,780.12/9,661,019.34 = 3,903,266.68/x
  3. Step 3: Cross multiply
    7,000,780.12x = 9,661,019.34 × 3,903,266.68
  4. Step 4: Simplify right side
    7,000,780.12x = 37,709,534,884,657.59
  5. Step 5: Solve for x
    x = 37,709,534,884,657.59/7,000,780.12
  6. Step 6: Final answer
    x = 5,386,476.11

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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.