Home / 390,834,033,107.46-585,915,288,600.90-135,830,286,256.57

Finding the Fourth Proportional to 390,834,033,107.46, 585,915,288,600.90 and 135,830,286,256.57

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Solution

The fourth proportional to 390,834,033,107.46, 585,915,288,600.90 and 135,830,286,256.57 is: 203,628,739,135.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,834,033,107.46 : 585,915,288,600.90 = 135,830,286,256.57 : x
  2. Step 2: Convert to fraction form
    390,834,033,107.46/585,915,288,600.90 = 135,830,286,256.57/x
  3. Step 3: Cross multiply
    390,834,033,107.46x = 585,915,288,600.90 × 135,830,286,256.57
  4. Step 4: Simplify right side
    390,834,033,107.46x = 79,585,041,372,761,072,599,040
  5. Step 5: Solve for x
    x = 79,585,041,372,761,072,599,040/390,834,033,107.46
  6. Step 6: Final answer
    x = 203,628,739,135.11

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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.