Home / 209,969,207.70-314,953,811.55-198,064,929.30

Finding the Fourth Proportional to 209,969,207.70, 314,953,811.55 and 198,064,929.30

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Solution

The fourth proportional to 209,969,207.70, 314,953,811.55 and 198,064,929.30 is: 297,097,393.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,969,207.70 : 314,953,811.55 = 198,064,929.30 : x
  2. Step 2: Convert to fraction form
    209,969,207.70/314,953,811.55 = 198,064,929.30/x
  3. Step 3: Cross multiply
    209,969,207.70x = 314,953,811.55 × 198,064,929.30
  4. Step 4: Simplify right side
    209,969,207.70x = 62,381,304,417,416,280
  5. Step 5: Solve for x
    x = 62,381,304,417,416,280/209,969,207.70
  6. Step 6: Final answer
    x = 297,097,393.95

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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.