Home / 85,547,107.80-128,226,183.30-47,236,116.60

Finding the Fourth Proportional to 85,547,107.80, 128,226,183.30 and 47,236,116.60

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Solution

The fourth proportional to 85,547,107.80, 128,226,183.30 and 47,236,116.60 is: 70,802,007.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,547,107.80 : 128,226,183.30 = 47,236,116.60 : x
  2. Step 2: Convert to fraction form
    85,547,107.80/128,226,183.30 = 47,236,116.60/x
  3. Step 3: Cross multiply
    85,547,107.80x = 128,226,183.30 × 47,236,116.60
  4. Step 4: Simplify right side
    85,547,107.80x = 6,056,906,945,531,773
  5. Step 5: Solve for x
    x = 6,056,906,945,531,773/85,547,107.80
  6. Step 6: Final answer
    x = 70,802,007.24

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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.