Home / 745,284,902.37-1,028,479,822.04-406,196,431.98

Finding the Fourth Proportional to 745,284,902.37, 1,028,479,822.04 and 406,196,431.98

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Solution

The fourth proportional to 745,284,902.37, 1,028,479,822.04 and 406,196,431.98 is: 560,543,803.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,284,902.37 : 1,028,479,822.04 = 406,196,431.98 : x
  2. Step 2: Convert to fraction form
    745,284,902.37/1,028,479,822.04 = 406,196,431.98/x
  3. Step 3: Cross multiply
    745,284,902.37x = 1,028,479,822.04 × 406,196,431.98
  4. Step 4: Simplify right side
    745,284,902.37x = 417,764,834,070,957,376
  5. Step 5: Solve for x
    x = 417,764,834,070,957,376/745,284,902.37
  6. Step 6: Final answer
    x = 560,543,803.78

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Double scale
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1.5x scale

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.