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Finding the Fourth Proportional to 607,210,978.66, 837,940,989.45 and 328,750,241.38

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Solution

The fourth proportional to 607,210,978.66, 837,940,989.45 and 328,750,241.38 is: 453,669,831.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,210,978.66 : 837,940,989.45 = 328,750,241.38 : x
  2. Step 2: Convert to fraction form
    607,210,978.66/837,940,989.45 = 328,750,241.38/x
  3. Step 3: Cross multiply
    607,210,978.66x = 837,940,989.45 × 328,750,241.38
  4. Step 4: Simplify right side
    607,210,978.66x = 275,473,302,543,883,552
  5. Step 5: Solve for x
    x = 275,473,302,543,883,552/607,210,978.66
  6. Step 6: Final answer
    x = 453,669,831.78

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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.