Home / 30,581,757,764.64-42,204,946,811.40-18,539,276,139.18

Finding the Fourth Proportional to 30,581,757,764.64, 42,204,946,811.40 and 18,539,276,139.18

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Solution

The fourth proportional to 30,581,757,764.64, 42,204,946,811.40 and 18,539,276,139.18 is: 25,585,486,923.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,581,757,764.64 : 42,204,946,811.40 = 18,539,276,139.18 : x
  2. Step 2: Convert to fraction form
    30,581,757,764.64/42,204,946,811.40 = 18,539,276,139.18/x
  3. Step 3: Cross multiply
    30,581,757,764.64x = 42,204,946,811.40 × 18,539,276,139.18
  4. Step 4: Simplify right side
    30,581,757,764.64x = 782,449,163,375,949,119,488
  5. Step 5: Solve for x
    x = 782,449,163,375,949,119,488/30,581,757,764.64
  6. Step 6: Final answer
    x = 25,585,486,923.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.