Home / 15,360,841,709.28-21,197,848,705.20-8,677,716,829.92

Finding the Fourth Proportional to 15,360,841,709.28, 21,197,848,705.20 and 8,677,716,829.92

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Solution

The fourth proportional to 15,360,841,709.28, 21,197,848,705.20 and 8,677,716,829.92 is: 11,975,185,471.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,360,841,709.28 : 21,197,848,705.20 = 8,677,716,829.92 : x
  2. Step 2: Convert to fraction form
    15,360,841,709.28/21,197,848,705.20 = 8,677,716,829.92/x
  3. Step 3: Cross multiply
    15,360,841,709.28x = 21,197,848,705.20 × 8,677,716,829.92
  4. Step 4: Simplify right side
    15,360,841,709.28x = 183,948,928,467,211,943,936
  5. Step 5: Solve for x
    x = 183,948,928,467,211,943,936/15,360,841,709.28
  6. Step 6: Final answer
    x = 11,975,185,471.52

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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.