Home / 153,601,422.70-211,990,700.90-86,634,127.08

Finding the Fourth Proportional to 153,601,422.70, 211,990,700.90 and 86,634,127.08

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Solution

The fourth proportional to 153,601,422.70, 211,990,700.90 and 86,634,127.08 is: 119,566,791.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,601,422.70 : 211,990,700.90 = 86,634,127.08 : x
  2. Step 2: Convert to fraction form
    153,601,422.70/211,990,700.90 = 86,634,127.08/x
  3. Step 3: Cross multiply
    153,601,422.70x = 211,990,700.90 × 86,634,127.08
  4. Step 4: Simplify right side
    153,601,422.70x = 18,365,629,321,548,872
  5. Step 5: Solve for x
    x = 18,365,629,321,548,872/153,601,422.70
  6. Step 6: Final answer
    x = 119,566,791.76

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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.