Home / 15,636,697,606.62-21,578,489,394.87-8,499,686,782.26

Finding the Fourth Proportional to 15,636,697,606.62, 21,578,489,394.87 and 8,499,686,782.26

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Solution

The fourth proportional to 15,636,697,606.62, 21,578,489,394.87 and 8,499,686,782.26 is: 11,729,484,428.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,636,697,606.62 : 21,578,489,394.87 = 8,499,686,782.26 : x
  2. Step 2: Convert to fraction form
    15,636,697,606.62/21,578,489,394.87 = 8,499,686,782.26/x
  3. Step 3: Cross multiply
    15,636,697,606.62x = 21,578,489,394.87 × 8,499,686,782.26
  4. Step 4: Simplify right side
    15,636,697,606.62x = 183,410,401,090,714,107,904
  5. Step 5: Solve for x
    x = 183,410,401,090,714,107,904/15,636,697,606.62
  6. Step 6: Final answer
    x = 11,729,484,428.54

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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.