Home / 13,579,153.70-18,739,724.85-7,779,056.42

Finding the Fourth Proportional to 13,579,153.70, 18,739,724.85 and 7,779,056.42

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Solution

The fourth proportional to 13,579,153.70, 18,739,724.85 and 7,779,056.42 is: 10,735,380.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,579,153.70 : 18,739,724.85 = 7,779,056.42 : x
  2. Step 2: Convert to fraction form
    13,579,153.70/18,739,724.85 = 7,779,056.42/x
  3. Step 3: Cross multiply
    13,579,153.70x = 18,739,724.85 × 7,779,056.42
  4. Step 4: Simplify right side
    13,579,153.70x = 145,777,376,903,426.06
  5. Step 5: Solve for x
    x = 145,777,376,903,426.06/13,579,153.70
  6. Step 6: Final answer
    x = 10,735,380.14

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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.