Home / 100,787,475.32-139,012,458.80-76,008,706.42

Finding the Fourth Proportional to 100,787,475.32, 139,012,458.80 and 76,008,706.42

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Solution

The fourth proportional to 100,787,475.32, 139,012,458.80 and 76,008,706.42 is: 104,836,013.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,787,475.32 : 139,012,458.80 = 76,008,706.42 : x
  2. Step 2: Convert to fraction form
    100,787,475.32/139,012,458.80 = 76,008,706.42/x
  3. Step 3: Cross multiply
    100,787,475.32x = 139,012,458.80 × 76,008,706.42
  4. Step 4: Simplify right side
    100,787,475.32x = 10,566,157,169,651,546
  5. Step 5: Solve for x
    x = 10,566,157,169,651,546/100,787,475.32
  6. Step 6: Final answer
    x = 104,836,013.96

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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.