Home / 388,052,732.68-535,514,946.23-220,788,989.85

Finding the Fourth Proportional to 388,052,732.68, 535,514,946.23 and 220,788,989.85

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Solution

The fourth proportional to 388,052,732.68, 535,514,946.23 and 220,788,989.85 is: 304,690,043.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,052,732.68 : 535,514,946.23 = 220,788,989.85 : x
  2. Step 2: Convert to fraction form
    388,052,732.68/535,514,946.23 = 220,788,989.85/x
  3. Step 3: Cross multiply
    388,052,732.68x = 535,514,946.23 × 220,788,989.85
  4. Step 4: Simplify right side
    388,052,732.68x = 118,235,804,027,698,768
  5. Step 5: Solve for x
    x = 118,235,804,027,698,768/388,052,732.68
  6. Step 6: Final answer
    x = 304,690,043.57

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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.