Home / 664,368,820.38-916,856,827.44-382,111,339.47

Finding the Fourth Proportional to 664,368,820.38, 916,856,827.44 and 382,111,339.47

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Solution

The fourth proportional to 664,368,820.38, 916,856,827.44 and 382,111,339.47 is: 527,329,669.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,368,820.38 : 916,856,827.44 = 382,111,339.47 : x
  2. Step 2: Convert to fraction form
    664,368,820.38/916,856,827.44 = 382,111,339.47/x
  3. Step 3: Cross multiply
    664,368,820.38x = 916,856,827.44 × 382,111,339.47
  4. Step 4: Simplify right side
    664,368,820.38x = 350,341,390,435,313,088
  5. Step 5: Solve for x
    x = 350,341,390,435,313,088/664,368,820.38
  6. Step 6: Final answer
    x = 527,329,669.44

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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.