Home / 19,689,597,871.20-27,171,646,389.09-10,778,926,624.20

Finding the Fourth Proportional to 19,689,597,871.20, 27,171,646,389.09 and 10,778,926,624.20

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Solution

The fourth proportional to 19,689,597,871.20, 27,171,646,389.09 and 10,778,926,624.20 is: 14,874,919,467.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,689,597,871.20 : 27,171,646,389.09 = 10,778,926,624.20 : x
  2. Step 2: Convert to fraction form
    19,689,597,871.20/27,171,646,389.09 = 10,778,926,624.20/x
  3. Step 3: Cross multiply
    19,689,597,871.20x = 27,171,646,389.09 × 10,778,926,624.20
  4. Step 4: Simplify right side
    19,689,597,871.20x = 292,881,182,686,710,005,760
  5. Step 5: Solve for x
    x = 292,881,182,686,710,005,760/19,689,597,871.20
  6. Step 6: Final answer
    x = 14,874,919,467.76

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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.