Home / 489,909,688.37-676,074,186.24-266,893,202.61

Finding the Fourth Proportional to 489,909,688.37, 676,074,186.24 and 266,893,202.61

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Solution

The fourth proportional to 489,909,688.37, 676,074,186.24 and 266,893,202.61 is: 368,311,974.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,909,688.37 : 676,074,186.24 = 266,893,202.61 : x
  2. Step 2: Convert to fraction form
    489,909,688.37/676,074,186.24 = 266,893,202.61/x
  3. Step 3: Cross multiply
    489,909,688.37x = 676,074,186.24 × 266,893,202.61
  4. Step 4: Simplify right side
    489,909,688.37x = 180,439,604,767,543,200
  5. Step 5: Solve for x
    x = 180,439,604,767,543,200/489,909,688.37
  6. Step 6: Final answer
    x = 368,311,974.74

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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.