Home / 209,969,386.70-314,954,080.05-198,065,108.30

Finding the Fourth Proportional to 209,969,386.70, 314,954,080.05 and 198,065,108.30

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Solution

The fourth proportional to 209,969,386.70, 314,954,080.05 and 198,065,108.30 is: 297,097,662.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,969,386.70 : 314,954,080.05 = 198,065,108.30 : x
  2. Step 2: Convert to fraction form
    209,969,386.70/314,954,080.05 = 198,065,108.30/x
  3. Step 3: Cross multiply
    209,969,386.70x = 314,954,080.05 × 198,065,108.30
  4. Step 4: Simplify right side
    209,969,386.70x = 62,381,413,974,630,128
  5. Step 5: Solve for x
    x = 62,381,413,974,630,128/209,969,386.70
  6. Step 6: Final answer
    x = 297,097,662.45

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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.