Home / 385,148,957.27-531,505,561.02-220,140,069.71

Finding the Fourth Proportional to 385,148,957.27, 531,505,561.02 and 220,140,069.71

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Solution

The fourth proportional to 385,148,957.27, 531,505,561.02 and 220,140,069.71 is: 303,793,296.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,148,957.27 : 531,505,561.02 = 220,140,069.71 : x
  2. Step 2: Convert to fraction form
    385,148,957.27/531,505,561.02 = 220,140,069.71/x
  3. Step 3: Cross multiply
    385,148,957.27x = 531,505,561.02 × 220,140,069.71
  4. Step 4: Simplify right side
    385,148,957.27x = 117,005,671,254,195,456
  5. Step 5: Solve for x
    x = 117,005,671,254,195,456/385,148,957.27
  6. Step 6: Final answer
    x = 303,793,296.19

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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.