Home / 290,928,817.84-401,490,280.20-158,778,290.32

Finding the Fourth Proportional to 290,928,817.84, 401,490,280.20 and 158,778,290.32

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Solution

The fourth proportional to 290,928,817.84, 401,490,280.20 and 158,778,290.32 is: 219,118,685.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,928,817.84 : 401,490,280.20 = 158,778,290.32 : x
  2. Step 2: Convert to fraction form
    290,928,817.84/401,490,280.20 = 158,778,290.32/x
  3. Step 3: Cross multiply
    290,928,817.84x = 401,490,280.20 × 158,778,290.32
  4. Step 4: Simplify right side
    290,928,817.84x = 63,747,940,270,253,744
  5. Step 5: Solve for x
    x = 63,747,940,270,253,744/290,928,817.84
  6. Step 6: Final answer
    x = 219,118,685.95

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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.