Home / 18,779,601.84-28,179,869.40-10,143,528

Finding the Fourth Proportional to 18,779,601.84, 28,179,869.40 and 10,143,528

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Solution

The fourth proportional to 18,779,601.84, 28,179,869.40 and 10,143,528 is: 15,220,945.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,779,601.84 : 28,179,869.40 = 10,143,528 : x
  2. Step 2: Convert to fraction form
    18,779,601.84/28,179,869.40 = 10,143,528/x
  3. Step 3: Cross multiply
    18,779,601.84x = 28,179,869.40 × 10,143,528
  4. Step 4: Simplify right side
    18,779,601.84x = 285,843,294,295,243.19
  5. Step 5: Solve for x
    x = 285,843,294,295,243.19/18,779,601.84
  6. Step 6: Final answer
    x = 15,220,945.40

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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.