Home / 15,705,459.36-21,666,259.08-9,179,363.88

Finding the Fourth Proportional to 15,705,459.36, 21,666,259.08 and 9,179,363.88

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Solution

The fourth proportional to 15,705,459.36, 21,666,259.08 and 9,179,363.88 is: 12,663,270.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,705,459.36 : 21,666,259.08 = 9,179,363.88 : x
  2. Step 2: Convert to fraction form
    15,705,459.36/21,666,259.08 = 9,179,363.88/x
  3. Step 3: Cross multiply
    15,705,459.36x = 21,666,259.08 × 9,179,363.88
  4. Step 4: Simplify right side
    15,705,459.36x = 198,882,476,013,674.03
  5. Step 5: Solve for x
    x = 198,882,476,013,674.03/15,705,459.36
  6. Step 6: Final answer
    x = 12,663,270.23

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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.