Home / 658,810,919.69-988,181,575.10-216,095,283.36

Finding the Fourth Proportional to 658,810,919.69, 988,181,575.10 and 216,095,283.36

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Solution

The fourth proportional to 658,810,919.69, 988,181,575.10 and 216,095,283.36 is: 324,131,508.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,810,919.69 : 988,181,575.10 = 216,095,283.36 : x
  2. Step 2: Convert to fraction form
    658,810,919.69/988,181,575.10 = 216,095,283.36/x
  3. Step 3: Cross multiply
    658,810,919.69x = 988,181,575.10 × 216,095,283.36
  4. Step 4: Simplify right side
    658,810,919.69x = 213,541,377,482,365,632
  5. Step 5: Solve for x
    x = 213,541,377,482,365,632/658,810,919.69
  6. Step 6: Final answer
    x = 324,131,508.91

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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.