Home / 13,209,269.32-18,228,923.67-7,407,926.50

Finding the Fourth Proportional to 13,209,269.32, 18,228,923.67 and 7,407,926.50

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Solution

The fourth proportional to 13,209,269.32, 18,228,923.67 and 7,407,926.50 is: 10,223,012.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,209,269.32 : 18,228,923.67 = 7,407,926.50 : x
  2. Step 2: Convert to fraction form
    13,209,269.32/18,228,923.67 = 7,407,926.50/x
  3. Step 3: Cross multiply
    13,209,269.32x = 18,228,923.67 × 7,407,926.50
  4. Step 4: Simplify right side
    13,209,269.32x = 135,038,526,721,470.27
  5. Step 5: Solve for x
    x = 135,038,526,721,470.27/13,209,269.32
  6. Step 6: Final answer
    x = 10,223,012.60

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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.