Home / 18,779,602.84-28,179,870.90-10,143,529

Finding the Fourth Proportional to 18,779,602.84, 28,179,870.90 and 10,143,529

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Solution

The fourth proportional to 18,779,602.84, 28,179,870.90 and 10,143,529 is: 15,220,946.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,779,602.84 : 28,179,870.90 = 10,143,529 : x
  2. Step 2: Convert to fraction form
    18,779,602.84/28,179,870.90 = 10,143,529/x
  3. Step 3: Cross multiply
    18,779,602.84x = 28,179,870.90 × 10,143,529
  4. Step 4: Simplify right side
    18,779,602.84x = 285,843,337,690,406.06
  5. Step 5: Solve for x
    x = 285,843,337,690,406.06/18,779,602.84
  6. Step 6: Final answer
    x = 15,220,946.90

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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.