Home / 18,909,937.60-28,365,136.80-6,130,340.80

Finding the Fourth Proportional to 18,909,937.60, 28,365,136.80 and 6,130,340.80

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Solution

The fourth proportional to 18,909,937.60, 28,365,136.80 and 6,130,340.80 is: 9,195,585.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,909,937.60 : 28,365,136.80 = 6,130,340.80 : x
  2. Step 2: Convert to fraction form
    18,909,937.60/28,365,136.80 = 6,130,340.80/x
  3. Step 3: Cross multiply
    18,909,937.60x = 28,365,136.80 × 6,130,340.80
  4. Step 4: Simplify right side
    18,909,937.60x = 173,887,955,422,621.44
  5. Step 5: Solve for x
    x = 173,887,955,422,621.44/18,909,937.60
  6. Step 6: Final answer
    x = 9,195,585.89

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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.