Home / 115,182,646.20-172,773,969.30-111,994,000.20

Finding the Fourth Proportional to 115,182,646.20, 172,773,969.30 and 111,994,000.20

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Solution

The fourth proportional to 115,182,646.20, 172,773,969.30 and 111,994,000.20 is: 167,991,000.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,182,646.20 : 172,773,969.30 = 111,994,000.20 : x
  2. Step 2: Convert to fraction form
    115,182,646.20/172,773,969.30 = 111,994,000.20/x
  3. Step 3: Cross multiply
    115,182,646.20x = 172,773,969.30 × 111,994,000.20
  4. Step 4: Simplify right side
    115,182,646.20x = 19,349,647,952,338,996
  5. Step 5: Solve for x
    x = 19,349,647,952,338,996/115,182,646.20
  6. Step 6: Final answer
    x = 167,991,000.30

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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.