Home / 209,952,480.30-314,928,720.45-188,789,318.70

Finding the Fourth Proportional to 209,952,480.30, 314,928,720.45 and 188,789,318.70

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Solution

The fourth proportional to 209,952,480.30, 314,928,720.45 and 188,789,318.70 is: 283,183,978.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,952,480.30 : 314,928,720.45 = 188,789,318.70 : x
  2. Step 2: Convert to fraction form
    209,952,480.30/314,928,720.45 = 188,789,318.70/x
  3. Step 3: Cross multiply
    209,952,480.30x = 314,928,720.45 × 188,789,318.70
  4. Step 4: Simplify right side
    209,952,480.30x = 59,455,178,572,818,248
  5. Step 5: Solve for x
    x = 59,455,178,572,818,248/209,952,480.30
  6. Step 6: Final answer
    x = 283,183,978.05

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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.