Home / 989,662,076.92-1,365,736,857.42-549,628,928.92

Finding the Fourth Proportional to 989,662,076.92, 1,365,736,857.42 and 549,628,928.92

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Solution

The fourth proportional to 989,662,076.92, 1,365,736,857.42 and 549,628,928.92 is: 758,489,694.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,662,076.92 : 1,365,736,857.42 = 549,628,928.92 : x
  2. Step 2: Convert to fraction form
    989,662,076.92/1,365,736,857.42 = 549,628,928.92/x
  3. Step 3: Cross multiply
    989,662,076.92x = 1,365,736,857.42 × 549,628,928.92
  4. Step 4: Simplify right side
    989,662,076.92x = 750,648,486,130,321,280
  5. Step 5: Solve for x
    x = 750,648,486,130,321,280/989,662,076.92
  6. Step 6: Final answer
    x = 758,489,694.25

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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.