Home / 310,479,642,003.10-465,719,463,004.65-257,480,519,107.90

Finding the Fourth Proportional to 310,479,642,003.10, 465,719,463,004.65 and 257,480,519,107.90

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Solution

The fourth proportional to 310,479,642,003.10, 465,719,463,004.65 and 257,480,519,107.90 is: 386,220,778,661.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,479,642,003.10 : 465,719,463,004.65 = 257,480,519,107.90 : x
  2. Step 2: Convert to fraction form
    310,479,642,003.10/465,719,463,004.65 = 257,480,519,107.90/x
  3. Step 3: Cross multiply
    310,479,642,003.10x = 465,719,463,004.65 × 257,480,519,107.90
  4. Step 4: Simplify right side
    310,479,642,003.10x = 119,913,689,093,089,720,795,136
  5. Step 5: Solve for x
    x = 119,913,689,093,089,720,795,136/310,479,642,003.10
  6. Step 6: Final answer
    x = 386,220,778,661.85

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.