Home / 13,636,737.64-18,819,761.70-7,837,543.72

Finding the Fourth Proportional to 13,636,737.64, 18,819,761.70 and 7,837,543.72

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Solution

The fourth proportional to 13,636,737.64, 18,819,761.70 and 7,837,543.72 is: 10,816,421.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,636,737.64 : 18,819,761.70 = 7,837,543.72 : x
  2. Step 2: Convert to fraction form
    13,636,737.64/18,819,761.70 = 7,837,543.72/x
  3. Step 3: Cross multiply
    13,636,737.64x = 18,819,761.70 × 7,837,543.72
  4. Step 4: Simplify right side
    13,636,737.64x = 147,500,705,123,731.50
  5. Step 5: Solve for x
    x = 147,500,705,123,731.50/13,636,737.64
  6. Step 6: Final answer
    x = 10,816,421.71

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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.