Home / 89,631,064.80-134,147,998.80-78,881,522.40

Finding the Fourth Proportional to 89,631,064.80, 134,147,998.80 and 78,881,522.40

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Solution

The fourth proportional to 89,631,064.80, 134,147,998.80 and 78,881,522.40 is: 118,059,496.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,631,064.80 : 134,147,998.80 = 78,881,522.40 : x
  2. Step 2: Convert to fraction form
    89,631,064.80/134,147,998.80 = 78,881,522.40/x
  3. Step 3: Cross multiply
    89,631,064.80x = 134,147,998.80 × 78,881,522.40
  4. Step 4: Simplify right side
    89,631,064.80x = 10,581,798,372,257,374
  5. Step 5: Solve for x
    x = 10,581,798,372,257,374/89,631,064.80
  6. Step 6: Final answer
    x = 118,059,496.40

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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.