Home / 213,568,291.20-320,352,436.80-116,486,486.40

Finding the Fourth Proportional to 213,568,291.20, 320,352,436.80 and 116,486,486.40

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Solution

The fourth proportional to 213,568,291.20, 320,352,436.80 and 116,486,486.40 is: 174,729,729.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,568,291.20 : 320,352,436.80 = 116,486,486.40 : x
  2. Step 2: Convert to fraction form
    213,568,291.20/320,352,436.80 = 116,486,486.40/x
  3. Step 3: Cross multiply
    213,568,291.20x = 320,352,436.80 × 116,486,486.40
  4. Step 4: Simplify right side
    213,568,291.20x = 37,316,729,772,510,064
  5. Step 5: Solve for x
    x = 37,316,729,772,510,064/213,568,291.20
  6. Step 6: Final answer
    x = 174,729,729.60

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1.5x scale

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.