Home / 161,808,015.20-242,712,022.80-54,102,639.20

Finding the Fourth Proportional to 161,808,015.20, 242,712,022.80 and 54,102,639.20

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Solution

The fourth proportional to 161,808,015.20, 242,712,022.80 and 54,102,639.20 is: 81,153,958.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,808,015.20 : 242,712,022.80 = 54,102,639.20 : x
  2. Step 2: Convert to fraction form
    161,808,015.20/242,712,022.80 = 54,102,639.20/x
  3. Step 3: Cross multiply
    161,808,015.20x = 242,712,022.80 × 54,102,639.20
  4. Step 4: Simplify right side
    161,808,015.20x = 13,131,360,999,050,576
  5. Step 5: Solve for x
    x = 13,131,360,999,050,576/161,808,015.20
  6. Step 6: Final answer
    x = 81,153,958.80

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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.