Home / 15,355,136.61-21,190,089.39-8,480,061.54

Finding the Fourth Proportional to 15,355,136.61, 21,190,089.39 and 8,480,061.54

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Solution

The fourth proportional to 15,355,136.61, 21,190,089.39 and 8,480,061.54 is: 11,702,485.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,355,136.61 : 21,190,089.39 = 8,480,061.54 : x
  2. Step 2: Convert to fraction form
    15,355,136.61/21,190,089.39 = 8,480,061.54/x
  3. Step 3: Cross multiply
    15,355,136.61x = 21,190,089.39 × 8,480,061.54
  4. Step 4: Simplify right side
    15,355,136.61x = 179,693,262,065,301.03
  5. Step 5: Solve for x
    x = 179,693,262,065,301.03/15,355,136.61
  6. Step 6: Final answer
    x = 11,702,485.40

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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.