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Finding the Fourth Proportional to 297,784,901.66, 446,661,187.78 and 90,507,151.56

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Solution

The fourth proportional to 297,784,901.66, 446,661,187.78 and 90,507,151.56 is: 135,755,814.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,784,901.66 : 446,661,187.78 = 90,507,151.56 : x
  2. Step 2: Convert to fraction form
    297,784,901.66/446,661,187.78 = 90,507,151.56/x
  3. Step 3: Cross multiply
    297,784,901.66x = 446,661,187.78 × 90,507,151.56
  4. Step 4: Simplify right side
    297,784,901.66x = 40,426,031,818,374,080
  5. Step 5: Solve for x
    x = 40,426,031,818,374,080/297,784,901.66
  6. Step 6: Final answer
    x = 135,755,814.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.