Home / 18,709,995.25-28,065,998.90-5,931,496.40

Finding the Fourth Proportional to 18,709,995.25, 28,065,998.90 and 5,931,496.40

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Solution

The fourth proportional to 18,709,995.25, 28,065,998.90 and 5,931,496.40 is: 8,897,563.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,709,995.25 : 28,065,998.90 = 5,931,496.40 : x
  2. Step 2: Convert to fraction form
    18,709,995.25/28,065,998.90 = 5,931,496.40/x
  3. Step 3: Cross multiply
    18,709,995.25x = 28,065,998.90 × 5,931,496.40
  4. Step 4: Simplify right side
    18,709,995.25x = 166,473,371,478,261.47
  5. Step 5: Solve for x
    x = 166,473,371,478,261.47/18,709,995.25
  6. Step 6: Final answer
    x = 8,897,563.54

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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.