Home / 38,338,815,592.74-52,909,609,274.73-21,422,873,777.70

Finding the Fourth Proportional to 38,338,815,592.74, 52,909,609,274.73 and 21,422,873,777.70

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Solution

The fourth proportional to 38,338,815,592.74, 52,909,609,274.73 and 21,422,873,777.70 is: 29,564,707,818.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,338,815,592.74 : 52,909,609,274.73 = 21,422,873,777.70 : x
  2. Step 2: Convert to fraction form
    38,338,815,592.74/52,909,609,274.73 = 21,422,873,777.70/x
  3. Step 3: Cross multiply
    38,338,815,592.74x = 52,909,609,274.73 × 21,422,873,777.70
  4. Step 4: Simplify right side
    38,338,815,592.74x = 1,133,475,881,119,966,167,040
  5. Step 5: Solve for x
    x = 1,133,475,881,119,966,167,040/38,338,815,592.74
  6. Step 6: Final answer
    x = 29,564,707,818.85

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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.