Home / 21,942,615,988.88-30,280,295,012.80-12,910,959,085.36

Finding the Fourth Proportional to 21,942,615,988.88, 30,280,295,012.80 and 12,910,959,085.36

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Solution

The fourth proportional to 21,942,615,988.88, 30,280,295,012.80 and 12,910,959,085.36 is: 17,816,820,483.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,942,615,988.88 : 30,280,295,012.80 = 12,910,959,085.36 : x
  2. Step 2: Convert to fraction form
    21,942,615,988.88/30,280,295,012.80 = 12,910,959,085.36/x
  3. Step 3: Cross multiply
    21,942,615,988.88x = 30,280,295,012.80 × 12,910,959,085.36
  4. Step 4: Simplify right side
    21,942,615,988.88x = 390,947,650,002,891,243,520
  5. Step 5: Solve for x
    x = 390,947,650,002,891,243,520/21,942,615,988.88
  6. Step 6: Final answer
    x = 17,816,820,483.07

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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.