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Finding the Fourth Proportional to 615,318,969.54, 849,004,434.12 and 364,298,718.09

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Solution

The fourth proportional to 615,318,969.54, 849,004,434.12 and 364,298,718.09 is: 502,651,864.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,318,969.54 : 849,004,434.12 = 364,298,718.09 : x
  2. Step 2: Convert to fraction form
    615,318,969.54/849,004,434.12 = 364,298,718.09/x
  3. Step 3: Cross multiply
    615,318,969.54x = 849,004,434.12 × 364,298,718.09
  4. Step 4: Simplify right side
    615,318,969.54x = 309,291,227,002,641,856
  5. Step 5: Solve for x
    x = 309,291,227,002,641,856/615,318,969.54
  6. Step 6: Final answer
    x = 502,651,864.01

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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.