Home / 215,208,040.80-322,812,061.20-198,579,842.40

Finding the Fourth Proportional to 215,208,040.80, 322,812,061.20 and 198,579,842.40

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Solution

The fourth proportional to 215,208,040.80, 322,812,061.20 and 198,579,842.40 is: 297,869,763.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,208,040.80 : 322,812,061.20 = 198,579,842.40 : x
  2. Step 2: Convert to fraction form
    215,208,040.80/322,812,061.20 = 198,579,842.40/x
  3. Step 3: Cross multiply
    215,208,040.80x = 322,812,061.20 × 198,579,842.40
  4. Step 4: Simplify right side
    215,208,040.80x = 64,103,968,237,915,152
  5. Step 5: Solve for x
    x = 64,103,968,237,915,152/215,208,040.80
  6. Step 6: Final answer
    x = 297,869,763.60

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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.