Home / 21,372,098,995.48-29,481,242,973.80-13,329,476,551.76

Finding the Fourth Proportional to 21,372,098,995.48, 29,481,242,973.80 and 13,329,476,551.76

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Solution

The fourth proportional to 21,372,098,995.48, 29,481,242,973.80 and 13,329,476,551.76 is: 18,387,035,219.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,372,098,995.48 : 29,481,242,973.80 = 13,329,476,551.76 : x
  2. Step 2: Convert to fraction form
    21,372,098,995.48/29,481,242,973.80 = 13,329,476,551.76/x
  3. Step 3: Cross multiply
    21,372,098,995.48x = 29,481,242,973.80 × 13,329,476,551.76
  4. Step 4: Simplify right side
    21,372,098,995.48x = 392,969,536,936,006,320,128
  5. Step 5: Solve for x
    x = 392,969,536,936,006,320,128/21,372,098,995.48
  6. Step 6: Final answer
    x = 18,387,035,219.10

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1.5x scale

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.