Home / 21,080,220,938.84-31,619,167,505.76-15,413,616,363.15

Finding the Fourth Proportional to 21,080,220,938.84, 31,619,167,505.76 and 15,413,616,363.15

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Solution

The fourth proportional to 21,080,220,938.84, 31,619,167,505.76 and 15,413,616,363.15 is: 23,119,573,512.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,080,220,938.84 : 31,619,167,505.76 = 15,413,616,363.15 : x
  2. Step 2: Convert to fraction form
    21,080,220,938.84/31,619,167,505.76 = 15,413,616,363.15/x
  3. Step 3: Cross multiply
    21,080,220,938.84x = 31,619,167,505.76 × 15,413,616,363.15
  4. Step 4: Simplify right side
    21,080,220,938.84x = 487,365,717,655,963,041,792
  5. Step 5: Solve for x
    x = 487,365,717,655,963,041,792/21,080,220,938.84
  6. Step 6: Final answer
    x = 23,119,573,512.53

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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.