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Finding the Fourth Proportional to 307,591,531.80, 424,459,881.90 and 168,335,359.80

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Solution

The fourth proportional to 307,591,531.80, 424,459,881.90 and 168,335,359.80 is: 232,293,803.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,591,531.80 : 424,459,881.90 = 168,335,359.80 : x
  2. Step 2: Convert to fraction form
    307,591,531.80/424,459,881.90 = 168,335,359.80/x
  3. Step 3: Cross multiply
    307,591,531.80x = 424,459,881.90 × 168,335,359.80
  4. Step 4: Simplify right side
    307,591,531.80x = 71,451,606,940,302,008
  5. Step 5: Solve for x
    x = 71,451,606,940,302,008/307,591,531.80
  6. Step 6: Final answer
    x = 232,293,803.81

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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.