Home / 239,565,830.81-330,601,842.48-129,557,543.81

Finding the Fourth Proportional to 239,565,830.81, 330,601,842.48 and 129,557,543.81

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Solution

The fourth proportional to 239,565,830.81, 330,601,842.48 and 129,557,543.81 is: 178,789,949.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,565,830.81 : 330,601,842.48 = 129,557,543.81 : x
  2. Step 2: Convert to fraction form
    239,565,830.81/330,601,842.48 = 129,557,543.81/x
  3. Step 3: Cross multiply
    239,565,830.81x = 330,601,842.48 × 129,557,543.81
  4. Step 4: Simplify right side
    239,565,830.81x = 42,831,962,690,769,320
  5. Step 5: Solve for x
    x = 42,831,962,690,769,320/239,565,830.81
  6. Step 6: Final answer
    x = 178,789,949.08

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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.