Home / 209,958,752.80-314,938,129.20-132,864,378.40

Finding the Fourth Proportional to 209,958,752.80, 314,938,129.20 and 132,864,378.40

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Solution

The fourth proportional to 209,958,752.80, 314,938,129.20 and 132,864,378.40 is: 199,296,567.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,958,752.80 : 314,938,129.20 = 132,864,378.40 : x
  2. Step 2: Convert to fraction form
    209,958,752.80/314,938,129.20 = 132,864,378.40/x
  3. Step 3: Cross multiply
    209,958,752.80x = 314,938,129.20 × 132,864,378.40
  4. Step 4: Simplify right side
    209,958,752.80x = 41,844,058,770,616,888
  5. Step 5: Solve for x
    x = 41,844,058,770,616,888/209,958,752.80
  6. Step 6: Final answer
    x = 199,296,567.60

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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.