Home / 13,921,223.80-20,881,835.70-7,543,931.80

Finding the Fourth Proportional to 13,921,223.80, 20,881,835.70 and 7,543,931.80

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Solution

The fourth proportional to 13,921,223.80, 20,881,835.70 and 7,543,931.80 is: 11,315,897.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,921,223.80 : 20,881,835.70 = 7,543,931.80 : x
  2. Step 2: Convert to fraction form
    13,921,223.80/20,881,835.70 = 7,543,931.80/x
  3. Step 3: Cross multiply
    13,921,223.80x = 20,881,835.70 × 7,543,931.80
  4. Step 4: Simplify right side
    13,921,223.80x = 157,531,144,379,605.25
  5. Step 5: Solve for x
    x = 157,531,144,379,605.25/13,921,223.80
  6. Step 6: Final answer
    x = 11,315,897.70

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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.