Home / 681,056,624.13-939,858,135.77-367,790,810.43

Finding the Fourth Proportional to 681,056,624.13, 939,858,135.77 and 367,790,810.43

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Solution

The fourth proportional to 681,056,624.13, 939,858,135.77 and 367,790,810.43 is: 507,551,315.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,056,624.13 : 939,858,135.77 = 367,790,810.43 : x
  2. Step 2: Convert to fraction form
    681,056,624.13/939,858,135.77 = 367,790,810.43/x
  3. Step 3: Cross multiply
    681,056,624.13x = 939,858,135.77 × 367,790,810.43
  4. Step 4: Simplify right side
    681,056,624.13x = 345,671,185,442,238,336
  5. Step 5: Solve for x
    x = 345,671,185,442,238,336/681,056,624.13
  6. Step 6: Final answer
    x = 507,551,315.40

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1.5x scale

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.