Home / 12,243,957.40-18,365,936.10-10,921,259.80

Finding the Fourth Proportional to 12,243,957.40, 18,365,936.10 and 10,921,259.80

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Solution

The fourth proportional to 12,243,957.40, 18,365,936.10 and 10,921,259.80 is: 16,381,889.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,243,957.40 : 18,365,936.10 = 10,921,259.80 : x
  2. Step 2: Convert to fraction form
    12,243,957.40/18,365,936.10 = 10,921,259.80/x
  3. Step 3: Cross multiply
    12,243,957.40x = 18,365,936.10 × 10,921,259.80
  4. Step 4: Simplify right side
    12,243,957.40x = 200,579,159,618,298.81
  5. Step 5: Solve for x
    x = 200,579,159,618,298.81/12,243,957.40
  6. Step 6: Final answer
    x = 16,381,889.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.