Home / 10,282,779.20-15,424,168.80-5,243,931.20

Finding the Fourth Proportional to 10,282,779.20, 15,424,168.80 and 5,243,931.20

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Solution

The fourth proportional to 10,282,779.20, 15,424,168.80 and 5,243,931.20 is: 7,865,896.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,282,779.20 : 15,424,168.80 = 5,243,931.20 : x
  2. Step 2: Convert to fraction form
    10,282,779.20/15,424,168.80 = 5,243,931.20/x
  3. Step 3: Cross multiply
    10,282,779.20x = 15,424,168.80 × 5,243,931.20
  4. Step 4: Simplify right side
    10,282,779.20x = 80,883,280,004,386.56
  5. Step 5: Solve for x
    x = 80,883,280,004,386.56/10,282,779.20
  6. Step 6: Final answer
    x = 7,865,896.80

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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.