Home / 15,519,579.75-21,417,026.40-8,996,990.76

Finding the Fourth Proportional to 15,519,579.75, 21,417,026.40 and 8,996,990.76

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Solution

The fourth proportional to 15,519,579.75, 21,417,026.40 and 8,996,990.76 is: 12,415,850.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,519,579.75 : 21,417,026.40 = 8,996,990.76 : x
  2. Step 2: Convert to fraction form
    15,519,579.75/21,417,026.40 = 8,996,990.76/x
  3. Step 3: Cross multiply
    15,519,579.75x = 21,417,026.40 × 8,996,990.76
  4. Step 4: Simplify right side
    15,519,579.75x = 192,688,788,627,476.03
  5. Step 5: Solve for x
    x = 192,688,788,627,476.03/15,519,579.75
  6. Step 6: Final answer
    x = 12,415,850.93

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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.