Home / 75,418,208.64-113,106,666.48-20,817,741.60

Finding the Fourth Proportional to 75,418,208.64, 113,106,666.48 and 20,817,741.60

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Solution

The fourth proportional to 75,418,208.64, 113,106,666.48 and 20,817,741.60 is: 31,220,913.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,418,208.64 : 113,106,666.48 = 20,817,741.60 : x
  2. Step 2: Convert to fraction form
    75,418,208.64/113,106,666.48 = 20,817,741.60/x
  3. Step 3: Cross multiply
    75,418,208.64x = 113,106,666.48 × 20,817,741.60
  4. Step 4: Simplify right side
    75,418,208.64x = 2,354,625,356,018,022
  5. Step 5: Solve for x
    x = 2,354,625,356,018,022/75,418,208.64
  6. Step 6: Final answer
    x = 31,220,913.34

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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.