Home / 28,550,820,510.33-39,397,764,141.39-15,689,784,219.72

Finding the Fourth Proportional to 28,550,820,510.33, 39,397,764,141.39 and 15,689,784,219.72

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Solution

The fourth proportional to 28,550,820,510.33, 39,397,764,141.39 and 15,689,784,219.72 is: 21,650,600,825.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,550,820,510.33 : 39,397,764,141.39 = 15,689,784,219.72 : x
  2. Step 2: Convert to fraction form
    28,550,820,510.33/39,397,764,141.39 = 15,689,784,219.72/x
  3. Step 3: Cross multiply
    28,550,820,510.33x = 39,397,764,141.39 × 15,689,784,219.72
  4. Step 4: Simplify right side
    28,550,820,510.33x = 618,142,418,117,831,294,976
  5. Step 5: Solve for x
    x = 618,142,418,117,831,294,976/28,550,820,510.33
  6. Step 6: Final answer
    x = 21,650,600,825.79

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1.5x scale

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.