Home / 20,731,859,638.49-28,629,725,552.75-19,602,401,145.80

Finding the Fourth Proportional to 20,731,859,638.49, 28,629,725,552.75 and 19,602,401,145.80

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Solution

The fourth proportional to 20,731,859,638.49, 28,629,725,552.75 and 19,602,401,145.80 is: 27,069,996,361.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,731,859,638.49 : 28,629,725,552.75 = 19,602,401,145.80 : x
  2. Step 2: Convert to fraction form
    20,731,859,638.49/28,629,725,552.75 = 19,602,401,145.80/x
  3. Step 3: Cross multiply
    20,731,859,638.49x = 28,629,725,552.75 × 19,602,401,145.80
  4. Step 4: Simplify right side
    20,731,859,638.49x = 561,211,364,979,062,145,024
  5. Step 5: Solve for x
    x = 561,211,364,979,062,145,024/20,731,859,638.49
  6. Step 6: Final answer
    x = 27,069,996,361.40

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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.