Home / 103,485,352-155,335,694.40-76,222,429.12

Finding the Fourth Proportional to 103,485,352, 155,335,694.40 and 76,222,429.12

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Solution

The fourth proportional to 103,485,352, 155,335,694.40 and 76,222,429.12 is: 114,412,945.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,485,352 : 155,335,694.40 = 76,222,429.12 : x
  2. Step 2: Convert to fraction form
    103,485,352/155,335,694.40 = 76,222,429.12/x
  3. Step 3: Cross multiply
    103,485,352x = 155,335,694.40 × 76,222,429.12
  4. Step 4: Simplify right side
    103,485,352x = 11,840,063,956,209,982
  5. Step 5: Solve for x
    x = 11,840,063,956,209,982/103,485,352
  6. Step 6: Final answer
    x = 114,412,945.67

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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.