Home / 15,561,153.84-21,478,908.60-9,036,260.40

Finding the Fourth Proportional to 15,561,153.84, 21,478,908.60 and 9,036,260.40

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Solution

The fourth proportional to 15,561,153.84, 21,478,908.60 and 9,036,260.40 is: 12,472,661.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,561,153.84 : 21,478,908.60 = 9,036,260.40 : x
  2. Step 2: Convert to fraction form
    15,561,153.84/21,478,908.60 = 9,036,260.40/x
  3. Step 3: Cross multiply
    15,561,153.84x = 21,478,908.60 × 9,036,260.40
  4. Step 4: Simplify right side
    15,561,153.84x = 194,089,011,217,399.47
  5. Step 5: Solve for x
    x = 194,089,011,217,399.47/15,561,153.84
  6. Step 6: Final answer
    x = 12,472,661.94

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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.