Home / 209,586,750.64-289,222,933.08-120,293,392.30

Finding the Fourth Proportional to 209,586,750.64, 289,222,933.08 and 120,293,392.30

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Solution

The fourth proportional to 209,586,750.64, 289,222,933.08 and 120,293,392.30 is: 166,000,988.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,586,750.64 : 289,222,933.08 = 120,293,392.30 : x
  2. Step 2: Convert to fraction form
    209,586,750.64/289,222,933.08 = 120,293,392.30/x
  3. Step 3: Cross multiply
    209,586,750.64x = 289,222,933.08 × 120,293,392.30
  4. Step 4: Simplify right side
    209,586,750.64x = 34,791,607,751,149,084
  5. Step 5: Solve for x
    x = 34,791,607,751,149,084/209,586,750.64
  6. Step 6: Final answer
    x = 166,000,988.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.