Home / 181,918,922.70-272,878,384.05-66,879,660.90

Finding the Fourth Proportional to 181,918,922.70, 272,878,384.05 and 66,879,660.90

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Solution

The fourth proportional to 181,918,922.70, 272,878,384.05 and 66,879,660.90 is: 100,319,491.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,918,922.70 : 272,878,384.05 = 66,879,660.90 : x
  2. Step 2: Convert to fraction form
    181,918,922.70/272,878,384.05 = 66,879,660.90/x
  3. Step 3: Cross multiply
    181,918,922.70x = 272,878,384.05 × 66,879,660.90
  4. Step 4: Simplify right side
    181,918,922.70x = 18,250,013,792,203,968
  5. Step 5: Solve for x
    x = 18,250,013,792,203,968/181,918,922.70
  6. Step 6: Final answer
    x = 100,319,491.35

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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.