Home / 20,437,737.80-28,197,004.67-13,099,617.42

Finding the Fourth Proportional to 20,437,737.80, 28,197,004.67 and 13,099,617.42

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Solution

The fourth proportional to 20,437,737.80, 28,197,004.67 and 13,099,617.42 is: 18,072,938.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,437,737.80 : 28,197,004.67 = 13,099,617.42 : x
  2. Step 2: Convert to fraction form
    20,437,737.80/28,197,004.67 = 13,099,617.42/x
  3. Step 3: Cross multiply
    20,437,737.80x = 28,197,004.67 × 13,099,617.42
  4. Step 4: Simplify right side
    20,437,737.80x = 369,369,973,603,448.19
  5. Step 5: Solve for x
    x = 369,369,973,603,448.19/20,437,737.80
  6. Step 6: Final answer
    x = 18,072,938.27

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1.5x scale

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.