Home / 215,604,003.10-323,406,004.65-86,147,599.90

Finding the Fourth Proportional to 215,604,003.10, 323,406,004.65 and 86,147,599.90

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Solution

The fourth proportional to 215,604,003.10, 323,406,004.65 and 86,147,599.90 is: 129,221,399.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,604,003.10 : 323,406,004.65 = 86,147,599.90 : x
  2. Step 2: Convert to fraction form
    215,604,003.10/323,406,004.65 = 86,147,599.90/x
  3. Step 3: Cross multiply
    215,604,003.10x = 323,406,004.65 × 86,147,599.90
  4. Step 4: Simplify right side
    215,604,003.10x = 27,860,651,093,845,740
  5. Step 5: Solve for x
    x = 27,860,651,093,845,740/215,604,003.10
  6. Step 6: Final answer
    x = 129,221,399.85

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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.