Home / 380,268,869,739.89-524,783,625,348.60-208,996,872,050.21

Finding the Fourth Proportional to 380,268,869,739.89, 524,783,625,348.60 and 208,996,872,050.21

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Solution

The fourth proportional to 380,268,869,739.89, 524,783,625,348.60 and 208,996,872,050.21 is: 288,422,600,240.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,268,869,739.89 : 524,783,625,348.60 = 208,996,872,050.21 : x
  2. Step 2: Convert to fraction form
    380,268,869,739.89/524,783,625,348.60 = 208,996,872,050.21/x
  3. Step 3: Cross multiply
    380,268,869,739.89x = 524,783,625,348.60 × 208,996,872,050.21
  4. Step 4: Simplify right side
    380,268,869,739.89x = 109,678,136,201,026,692,186,112
  5. Step 5: Solve for x
    x = 109,678,136,201,026,692,186,112/380,268,869,739.89
  6. Step 6: Final answer
    x = 288,422,600,240.85

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1.5x scale

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.