Home / 489,909,683.86-676,074,180.04-266,893,198.11

Finding the Fourth Proportional to 489,909,683.86, 676,074,180.04 and 266,893,198.11

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Solution

The fourth proportional to 489,909,683.86, 676,074,180.04 and 266,893,198.11 is: 368,311,968.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,909,683.86 : 676,074,180.04 = 266,893,198.11 : x
  2. Step 2: Convert to fraction form
    489,909,683.86/676,074,180.04 = 266,893,198.11/x
  3. Step 3: Cross multiply
    489,909,683.86x = 676,074,180.04 × 266,893,198.11
  4. Step 4: Simplify right side
    489,909,683.86x = 180,439,600,069,804,320
  5. Step 5: Solve for x
    x = 180,439,600,069,804,320/489,909,683.86
  6. Step 6: Final answer
    x = 368,311,968.54

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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.