Home / 31,436,791,730.28-43,402,351,261.86-20,011,806,984.04

Finding the Fourth Proportional to 31,436,791,730.28, 43,402,351,261.86 and 20,011,806,984.04

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Solution

The fourth proportional to 31,436,791,730.28, 43,402,351,261.86 and 20,011,806,984.04 is: 27,628,756,889.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,436,791,730.28 : 43,402,351,261.86 = 20,011,806,984.04 : x
  2. Step 2: Convert to fraction form
    31,436,791,730.28/43,402,351,261.86 = 20,011,806,984.04/x
  3. Step 3: Cross multiply
    31,436,791,730.28x = 43,402,351,261.86 × 20,011,806,984.04
  4. Step 4: Simplify right side
    31,436,791,730.28x = 868,559,476,105,847,242,752
  5. Step 5: Solve for x
    x = 868,559,476,105,847,242,752/31,436,791,730.28
  6. Step 6: Final answer
    x = 27,628,756,889.63

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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.