Home / 489,909,686.37-676,074,183.48-266,893,200.61

Finding the Fourth Proportional to 489,909,686.37, 676,074,183.48 and 266,893,200.61

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Solution

The fourth proportional to 489,909,686.37, 676,074,183.48 and 266,893,200.61 is: 368,311,971.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,909,686.37 : 676,074,183.48 = 266,893,200.61 : x
  2. Step 2: Convert to fraction form
    489,909,686.37/676,074,183.48 = 266,893,200.61/x
  3. Step 3: Cross multiply
    489,909,686.37x = 676,074,183.48 × 266,893,200.61
  4. Step 4: Simplify right side
    489,909,686.37x = 180,439,602,678,769,600
  5. Step 5: Solve for x
    x = 180,439,602,678,769,600/489,909,686.37
  6. Step 6: Final answer
    x = 368,311,971.98

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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.