Home / 31,482,187.80-47,223,281.70-18,020,376.60

Finding the Fourth Proportional to 31,482,187.80, 47,223,281.70 and 18,020,376.60

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Solution

The fourth proportional to 31,482,187.80, 47,223,281.70 and 18,020,376.60 is: 27,030,564.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,482,187.80 : 47,223,281.70 = 18,020,376.60 : x
  2. Step 2: Convert to fraction form
    31,482,187.80/47,223,281.70 = 18,020,376.60/x
  3. Step 3: Cross multiply
    31,482,187.80x = 47,223,281.70 × 18,020,376.60
  4. Step 4: Simplify right side
    31,482,187.80x = 850,981,320,521,888.38
  5. Step 5: Solve for x
    x = 850,981,320,521,888.38/31,482,187.80
  6. Step 6: Final answer
    x = 27,030,564.90

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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.