Home / 21,080,220,937.34-31,619,167,503.51-15,413,616,361.65

Finding the Fourth Proportional to 21,080,220,937.34, 31,619,167,503.51 and 15,413,616,361.65

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Solution

The fourth proportional to 21,080,220,937.34, 31,619,167,503.51 and 15,413,616,361.65 is: 23,119,573,510.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,080,220,937.34 : 31,619,167,503.51 = 15,413,616,361.65 : x
  2. Step 2: Convert to fraction form
    21,080,220,937.34/31,619,167,503.51 = 15,413,616,361.65/x
  3. Step 3: Cross multiply
    21,080,220,937.34x = 31,619,167,503.51 × 15,413,616,361.65
  4. Step 4: Simplify right side
    21,080,220,937.34x = 487,365,717,573,853,708,288
  5. Step 5: Solve for x
    x = 487,365,717,573,853,708,288/21,080,220,937.34
  6. Step 6: Final answer
    x = 23,119,573,510.29

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.