Home / 7,128,021.60-10,692,032.40-1,736,629.20

Finding the Fourth Proportional to 7,128,021.60, 10,692,032.40 and 1,736,629.20

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Solution

The fourth proportional to 7,128,021.60, 10,692,032.40 and 1,736,629.20 is: 2,604,943.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,128,021.60 : 10,692,032.40 = 1,736,629.20 : x
  2. Step 2: Convert to fraction form
    7,128,021.60/10,692,032.40 = 1,736,629.20/x
  3. Step 3: Cross multiply
    7,128,021.60x = 10,692,032.40 × 1,736,629.20
  4. Step 4: Simplify right side
    7,128,021.60x = 18,568,095,673,186.08
  5. Step 5: Solve for x
    x = 18,568,095,673,186.08/7,128,021.60
  6. Step 6: Final answer
    x = 2,604,943.80

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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.