Home / 208,673,084.80-313,009,627.20-72,372,246.40

Finding the Fourth Proportional to 208,673,084.80, 313,009,627.20 and 72,372,246.40

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Solution

The fourth proportional to 208,673,084.80, 313,009,627.20 and 72,372,246.40 is: 108,558,369.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,673,084.80 : 313,009,627.20 = 72,372,246.40 : x
  2. Step 2: Convert to fraction form
    208,673,084.80/313,009,627.20 = 72,372,246.40/x
  3. Step 3: Cross multiply
    208,673,084.80x = 313,009,627.20 × 72,372,246.40
  4. Step 4: Simplify right side
    208,673,084.80x = 22,653,209,865,290,544
  5. Step 5: Solve for x
    x = 22,653,209,865,290,544/208,673,084.80
  6. Step 6: Final answer
    x = 108,558,369.60

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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.