Home / 75,431,655.78-104,096,412.81-42,836,841.06

Finding the Fourth Proportional to 75,431,655.78, 104,096,412.81 and 42,836,841.06

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Solution

The fourth proportional to 75,431,655.78, 104,096,412.81 and 42,836,841.06 is: 59,115,253.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,431,655.78 : 104,096,412.81 = 42,836,841.06 : x
  2. Step 2: Convert to fraction form
    75,431,655.78/104,096,412.81 = 42,836,841.06/x
  3. Step 3: Cross multiply
    75,431,655.78x = 104,096,412.81 × 42,836,841.06
  4. Step 4: Simplify right side
    75,431,655.78x = 4,459,161,490,458,118.50
  5. Step 5: Solve for x
    x = 4,459,161,490,458,118.50/75,431,655.78
  6. Step 6: Final answer
    x = 59,115,253.99

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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.