Home / 489,909,685.37-676,074,182.10-266,893,199.61

Finding the Fourth Proportional to 489,909,685.37, 676,074,182.10 and 266,893,199.61

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Solution

The fourth proportional to 489,909,685.37, 676,074,182.10 and 266,893,199.61 is: 368,311,970.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,909,685.37 : 676,074,182.10 = 266,893,199.61 : x
  2. Step 2: Convert to fraction form
    489,909,685.37/676,074,182.10 = 266,893,199.61/x
  3. Step 3: Cross multiply
    489,909,685.37x = 676,074,182.10 × 266,893,199.61
  4. Step 4: Simplify right side
    489,909,685.37x = 180,439,601,634,382,816
  5. Step 5: Solve for x
    x = 180,439,601,634,382,816/489,909,685.37
  6. Step 6: Final answer
    x = 368,311,970.60

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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.