Home / 218,517,719.49-328,009,915.05-94,081,971.87

Finding the Fourth Proportional to 218,517,719.49, 328,009,915.05 and 94,081,971.87

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Solution

The fourth proportional to 218,517,719.49, 328,009,915.05 and 94,081,971.87 is: 141,223,419.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,517,719.49 : 328,009,915.05 = 94,081,971.87 : x
  2. Step 2: Convert to fraction form
    218,517,719.49/328,009,915.05 = 94,081,971.87/x
  3. Step 3: Cross multiply
    218,517,719.49x = 328,009,915.05 × 94,081,971.87
  4. Step 4: Simplify right side
    218,517,719.49x = 30,859,819,600,461,440
  5. Step 5: Solve for x
    x = 30,859,819,600,461,440/218,517,719.49
  6. Step 6: Final answer
    x = 141,223,419.65

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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.