Home / 290,325,332.80-434,984,114.40-188,036,718.40

Finding the Fourth Proportional to 290,325,332.80, 434,984,114.40 and 188,036,718.40

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Solution

The fourth proportional to 290,325,332.80, 434,984,114.40 and 188,036,718.40 is: 281,728,723.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,325,332.80 : 434,984,114.40 = 188,036,718.40 : x
  2. Step 2: Convert to fraction form
    290,325,332.80/434,984,114.40 = 188,036,718.40/x
  3. Step 3: Cross multiply
    290,325,332.80x = 434,984,114.40 × 188,036,718.40
  4. Step 4: Simplify right side
    290,325,332.80x = 81,792,985,427,906,176
  5. Step 5: Solve for x
    x = 81,792,985,427,906,176/290,325,332.80
  6. Step 6: Final answer
    x = 281,728,723.56

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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.