Home / 156,134,782.99-215,467,284.23-86,521,326.40

Finding the Fourth Proportional to 156,134,782.99, 215,467,284.23 and 86,521,326.40

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Solution

The fourth proportional to 156,134,782.99, 215,467,284.23 and 86,521,326.40 is: 119,400,141.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,134,782.99 : 215,467,284.23 = 86,521,326.40 : x
  2. Step 2: Convert to fraction form
    156,134,782.99/215,467,284.23 = 86,521,326.40/x
  3. Step 3: Cross multiply
    156,134,782.99x = 215,467,284.23 × 86,521,326.40
  4. Step 4: Simplify right side
    156,134,782.99x = 18,642,515,227,385,404
  5. Step 5: Solve for x
    x = 18,642,515,227,385,404/156,134,782.99
  6. Step 6: Final answer
    x = 119,400,141.79

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.