Home / 684,721,629.91-944,836,132.51-383,323,445.57

Finding the Fourth Proportional to 684,721,629.91, 944,836,132.51 and 383,323,445.57

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Solution

The fourth proportional to 684,721,629.91, 944,836,132.51 and 383,323,445.57 is: 528,941,727.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,721,629.91 : 944,836,132.51 = 383,323,445.57 : x
  2. Step 2: Convert to fraction form
    684,721,629.91/944,836,132.51 = 383,323,445.57/x
  3. Step 3: Cross multiply
    684,721,629.91x = 944,836,132.51 × 383,323,445.57
  4. Step 4: Simplify right side
    684,721,629.91x = 362,177,841,810,288,064
  5. Step 5: Solve for x
    x = 362,177,841,810,288,064/684,721,629.91
  6. Step 6: Final answer
    x = 528,941,727.55

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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.