Home / 5,128,761,941.19-7,077,618,275.79-2,839,675,388.50

Finding the Fourth Proportional to 5,128,761,941.19, 7,077,618,275.79 and 2,839,675,388.50

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Solution

The fourth proportional to 5,128,761,941.19, 7,077,618,275.79 and 2,839,675,388.50 is: 3,918,711,505.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,128,761,941.19 : 7,077,618,275.79 = 2,839,675,388.50 : x
  2. Step 2: Convert to fraction form
    5,128,761,941.19/7,077,618,275.79 = 2,839,675,388.50/x
  3. Step 3: Cross multiply
    5,128,761,941.19x = 7,077,618,275.79 × 2,839,675,388.50
  4. Step 4: Simplify right side
    5,128,761,941.19x = 20,098,138,426,958,667,776
  5. Step 5: Solve for x
    x = 20,098,138,426,958,667,776/5,128,761,941.19
  6. Step 6: Final answer
    x = 3,918,711,505.32

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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.