Home / 77,338,690.16-115,998,580.92-31,894,579.76

Finding the Fourth Proportional to 77,338,690.16, 115,998,580.92 and 31,894,579.76

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Solution

The fourth proportional to 77,338,690.16, 115,998,580.92 and 31,894,579.76 is: 47,837,970.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,338,690.16 : 115,998,580.92 = 31,894,579.76 : x
  2. Step 2: Convert to fraction form
    77,338,690.16/115,998,580.92 = 31,894,579.76/x
  3. Step 3: Cross multiply
    77,338,690.16x = 115,998,580.92 × 31,894,579.76
  4. Step 4: Simplify right side
    77,338,690.16x = 3,699,725,991,199,754.50
  5. Step 5: Solve for x
    x = 3,699,725,991,199,754.50/77,338,690.16
  6. Step 6: Final answer
    x = 47,837,970.67

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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.