Home / 728,124,810.56-1,092,964,447.61-313,806,099.64

Finding the Fourth Proportional to 728,124,810.56, 1,092,964,447.61 and 313,806,099.64

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Solution

The fourth proportional to 728,124,810.56, 1,092,964,447.61 and 313,806,099.64 is: 471,044,119.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,124,810.56 : 1,092,964,447.61 = 313,806,099.64 : x
  2. Step 2: Convert to fraction form
    728,124,810.56/1,092,964,447.61 = 313,806,099.64/x
  3. Step 3: Cross multiply
    728,124,810.56x = 1,092,964,447.61 × 313,806,099.64
  4. Step 4: Simplify right side
    728,124,810.56x = 342,978,910,349,681,152
  5. Step 5: Solve for x
    x = 342,978,910,349,681,152/728,124,810.56
  6. Step 6: Final answer
    x = 471,044,119.60

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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.