Home / 89,769,419.84-134,357,436.08-81,702,643.71

Finding the Fourth Proportional to 89,769,419.84, 134,357,436.08 and 81,702,643.71

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Solution

The fourth proportional to 89,769,419.84, 134,357,436.08 and 81,702,643.71 is: 122,283,933.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,769,419.84 : 134,357,436.08 = 81,702,643.71 : x
  2. Step 2: Convert to fraction form
    89,769,419.84/134,357,436.08 = 81,702,643.71/x
  3. Step 3: Cross multiply
    89,769,419.84x = 134,357,436.08 × 81,702,643.71
  4. Step 4: Simplify right side
    89,769,419.84x = 10,977,357,730,235,052
  5. Step 5: Solve for x
    x = 10,977,357,730,235,052/89,769,419.84
  6. Step 6: Final answer
    x = 122,283,933.10

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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.