Home / 172,216,216.40-258,178,014.29-80,153,416.22

Finding the Fourth Proportional to 172,216,216.40, 258,178,014.29 and 80,153,416.22

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Solution

The fourth proportional to 172,216,216.40, 258,178,014.29 and 80,153,416.22 is: 120,162,028.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,216,216.40 : 258,178,014.29 = 80,153,416.22 : x
  2. Step 2: Convert to fraction form
    172,216,216.40/258,178,014.29 = 80,153,416.22/x
  3. Step 3: Cross multiply
    172,216,216.40x = 258,178,014.29 × 80,153,416.22
  4. Step 4: Simplify right side
    172,216,216.40x = 20,693,849,837,148,972
  5. Step 5: Solve for x
    x = 20,693,849,837,148,972/172,216,216.40
  6. Step 6: Final answer
    x = 120,162,028.12

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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.