Home / 390,834,033,107.58-585,915,288,601.05-135,830,286,256.71

Finding the Fourth Proportional to 390,834,033,107.58, 585,915,288,601.05 and 135,830,286,256.71

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Solution

The fourth proportional to 390,834,033,107.58, 585,915,288,601.05 and 135,830,286,256.71 is: 203,628,739,135.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,834,033,107.58 : 585,915,288,601.05 = 135,830,286,256.71 : x
  2. Step 2: Convert to fraction form
    390,834,033,107.58/585,915,288,601.05 = 135,830,286,256.71/x
  3. Step 3: Cross multiply
    390,834,033,107.58x = 585,915,288,601.05 × 135,830,286,256.71
  4. Step 4: Simplify right side
    390,834,033,107.58x = 79,585,041,372,863,480,725,504
  5. Step 5: Solve for x
    x = 79,585,041,372,863,480,725,504/390,834,033,107.58
  6. Step 6: Final answer
    x = 203,628,739,135.31

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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.