Home / 258,869,351.60-388,304,027.40-74,636,471.60

Finding the Fourth Proportional to 258,869,351.60, 388,304,027.40 and 74,636,471.60

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Solution

The fourth proportional to 258,869,351.60, 388,304,027.40 and 74,636,471.60 is: 111,954,707.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,869,351.60 : 388,304,027.40 = 74,636,471.60 : x
  2. Step 2: Convert to fraction form
    258,869,351.60/388,304,027.40 = 74,636,471.60/x
  3. Step 3: Cross multiply
    258,869,351.60x = 388,304,027.40 × 74,636,471.60
  4. Step 4: Simplify right side
    258,869,351.60x = 28,981,642,513,205,716
  5. Step 5: Solve for x
    x = 28,981,642,513,205,716/258,869,351.60
  6. Step 6: Final answer
    x = 111,954,707.40

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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.