Home / 27,885,271,296.79-38,481,171,008.66-15,197,918,126.23

Finding the Fourth Proportional to 27,885,271,296.79, 38,481,171,008.66 and 15,197,918,126.23

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Solution

The fourth proportional to 27,885,271,296.79, 38,481,171,008.66 and 15,197,918,126.23 is: 20,972,852,663.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,885,271,296.79 : 38,481,171,008.66 = 15,197,918,126.23 : x
  2. Step 2: Convert to fraction form
    27,885,271,296.79/38,481,171,008.66 = 15,197,918,126.23/x
  3. Step 3: Cross multiply
    27,885,271,296.79x = 38,481,171,008.66 × 15,197,918,126.23
  4. Step 4: Simplify right side
    27,885,271,296.79x = 584,833,686,391,070,195,712
  5. Step 5: Solve for x
    x = 584,833,686,391,070,195,712/27,885,271,296.79
  6. Step 6: Final answer
    x = 20,972,852,663.56

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Double scale
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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.