Home / 7,172,526.66-9,897,798.15-3,909,273.18

Finding the Fourth Proportional to 7,172,526.66, 9,897,798.15 and 3,909,273.18

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Solution

The fourth proportional to 7,172,526.66, 9,897,798.15 and 3,909,273.18 is: 5,394,639.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,172,526.66 : 9,897,798.15 = 3,909,273.18 : x
  2. Step 2: Convert to fraction form
    7,172,526.66/9,897,798.15 = 3,909,273.18/x
  3. Step 3: Cross multiply
    7,172,526.66x = 9,897,798.15 × 3,909,273.18
  4. Step 4: Simplify right side
    7,172,526.66x = 38,693,196,848,848.62
  5. Step 5: Solve for x
    x = 38,693,196,848,848.62/7,172,526.66
  6. Step 6: Final answer
    x = 5,394,639.67

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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.