Home / 70,322,965.74-105,488,434.38-21,807,716.85

Finding the Fourth Proportional to 70,322,965.74, 105,488,434.38 and 21,807,716.85

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Solution

The fourth proportional to 70,322,965.74, 105,488,434.38 and 21,807,716.85 is: 32,712,811.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,322,965.74 : 105,488,434.38 = 21,807,716.85 : x
  2. Step 2: Convert to fraction form
    70,322,965.74/105,488,434.38 = 21,807,716.85/x
  3. Step 3: Cross multiply
    70,322,965.74x = 105,488,434.38 × 21,807,716.85
  4. Step 4: Simplify right side
    70,322,965.74x = 2,300,461,907,908,845.50
  5. Step 5: Solve for x
    x = 2,300,461,907,908,845.50/70,322,965.74
  6. Step 6: Final answer
    x = 32,712,811.29

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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.