Home / 20,881,543.62-31,318,582.47-13,285,946.82

Finding the Fourth Proportional to 20,881,543.62, 31,318,582.47 and 13,285,946.82

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Solution

The fourth proportional to 20,881,543.62, 31,318,582.47 and 13,285,946.82 is: 19,926,545.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,881,543.62 : 31,318,582.47 = 13,285,946.82 : x
  2. Step 2: Convert to fraction form
    20,881,543.62/31,318,582.47 = 13,285,946.82/x
  3. Step 3: Cross multiply
    20,881,543.62x = 31,318,582.47 × 13,285,946.82
  4. Step 4: Simplify right side
    20,881,543.62x = 416,097,021,174,204.25
  5. Step 5: Solve for x
    x = 416,097,021,174,204.25/20,881,543.62
  6. Step 6: Final answer
    x = 19,926,545.12

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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.