Home / 209,937,603.80-314,906,405.70-133,315,621.40

Finding the Fourth Proportional to 209,937,603.80, 314,906,405.70 and 133,315,621.40

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Solution

The fourth proportional to 209,937,603.80, 314,906,405.70 and 133,315,621.40 is: 199,973,432.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,937,603.80 : 314,906,405.70 = 133,315,621.40 : x
  2. Step 2: Convert to fraction form
    209,937,603.80/314,906,405.70 = 133,315,621.40/x
  3. Step 3: Cross multiply
    209,937,603.80x = 314,906,405.70 × 133,315,621.40
  4. Step 4: Simplify right side
    209,937,603.80x = 41,981,943,158,736,000
  5. Step 5: Solve for x
    x = 41,981,943,158,736,000/209,937,603.80
  6. Step 6: Final answer
    x = 199,973,432.10

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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.