Home / 74,310,711.86-111,426,209.70-31,131,130.60

Finding the Fourth Proportional to 74,310,711.86, 111,426,209.70 and 31,131,130.60

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Solution

The fourth proportional to 74,310,711.86, 111,426,209.70 and 31,131,130.60 is: 46,679,998.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,310,711.86 : 111,426,209.70 = 31,131,130.60 : x
  2. Step 2: Convert to fraction form
    74,310,711.86/111,426,209.70 = 31,131,130.60/x
  3. Step 3: Cross multiply
    74,310,711.86x = 111,426,209.70 × 31,131,130.60
  4. Step 4: Simplify right side
    74,310,711.86x = 3,468,823,886,433,687
  5. Step 5: Solve for x
    x = 3,468,823,886,433,687/74,310,711.86
  6. Step 6: Final answer
    x = 46,679,998.07

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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.