Home / 27,885,271,295.79-38,481,171,007.28-15,197,918,125.23

Finding the Fourth Proportional to 27,885,271,295.79, 38,481,171,007.28 and 15,197,918,125.23

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Solution

The fourth proportional to 27,885,271,295.79, 38,481,171,007.28 and 15,197,918,125.23 is: 20,972,852,662.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,885,271,295.79 : 38,481,171,007.28 = 15,197,918,125.23 : x
  2. Step 2: Convert to fraction form
    27,885,271,295.79/38,481,171,007.28 = 15,197,918,125.23/x
  3. Step 3: Cross multiply
    27,885,271,295.79x = 38,481,171,007.28 × 15,197,918,125.23
  4. Step 4: Simplify right side
    27,885,271,295.79x = 584,833,686,331,539,914,752
  5. Step 5: Solve for x
    x = 584,833,686,331,539,914,752/27,885,271,295.79
  6. Step 6: Final answer
    x = 20,972,852,662.18

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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.