Home / 783,906,636.20-1,081,749,992.59-431,415,254.55

Finding the Fourth Proportional to 783,906,636.20, 1,081,749,992.59 and 431,415,254.55

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Solution

The fourth proportional to 783,906,636.20, 1,081,749,992.59 and 431,415,254.55 is: 595,330,396.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,906,636.20 : 1,081,749,992.59 = 431,415,254.55 : x
  2. Step 2: Convert to fraction form
    783,906,636.20/1,081,749,992.59 = 431,415,254.55/x
  3. Step 3: Cross multiply
    783,906,636.20x = 1,081,749,992.59 × 431,415,254.55
  4. Step 4: Simplify right side
    783,906,636.20x = 466,683,448,407,266,688
  5. Step 5: Solve for x
    x = 466,683,448,407,266,688/783,906,636.20
  6. Step 6: Final answer
    x = 595,330,396.32

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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.