Home / 209,279,030.46-288,802,770.15-115,191,165.84

Finding the Fourth Proportional to 209,279,030.46, 288,802,770.15 and 115,191,165.84

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Solution

The fourth proportional to 209,279,030.46, 288,802,770.15 and 115,191,165.84 is: 158,962,547.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,279,030.46 : 288,802,770.15 = 115,191,165.84 : x
  2. Step 2: Convert to fraction form
    209,279,030.46/288,802,770.15 = 115,191,165.84/x
  3. Step 3: Cross multiply
    209,279,030.46x = 288,802,770.15 × 115,191,165.84
  4. Step 4: Simplify right side
    209,279,030.46x = 33,267,527,791,400,048
  5. Step 5: Solve for x
    x = 33,267,527,791,400,048/209,279,030.46
  6. Step 6: Final answer
    x = 158,962,547.36

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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.