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Finding the Fourth Proportional to 139,090,582.40, 208,626,542.40 and 36,852,425.60

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Solution

The fourth proportional to 139,090,582.40, 208,626,542.40 and 36,852,425.60 is: 55,276,166.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,090,582.40 : 208,626,542.40 = 36,852,425.60 : x
  2. Step 2: Convert to fraction form
    139,090,582.40/208,626,542.40 = 36,852,425.60/x
  3. Step 3: Cross multiply
    139,090,582.40x = 208,626,542.40 × 36,852,425.60
  4. Step 4: Simplify right side
    139,090,582.40x = 7,688,394,131,981,246
  5. Step 5: Solve for x
    x = 7,688,394,131,981,246/139,090,582.40
  6. Step 6: Final answer
    x = 55,276,166.07

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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.