Home / 385,148,958.02-531,505,562.06-220,140,070.46

Finding the Fourth Proportional to 385,148,958.02, 531,505,562.06 and 220,140,070.46

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Solution

The fourth proportional to 385,148,958.02, 531,505,562.06 and 220,140,070.46 is: 303,793,297.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,148,958.02 : 531,505,562.06 = 220,140,070.46 : x
  2. Step 2: Convert to fraction form
    385,148,958.02/531,505,562.06 = 220,140,070.46/x
  3. Step 3: Cross multiply
    385,148,958.02x = 531,505,562.06 × 220,140,070.46
  4. Step 4: Simplify right side
    385,148,958.02x = 117,005,671,881,770,304
  5. Step 5: Solve for x
    x = 117,005,671,881,770,304/385,148,958.02
  6. Step 6: Final answer
    x = 303,793,297.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.