Home / 310,479,642,003.60-465,719,463,005.40-257,480,519,108.40

Finding the Fourth Proportional to 310,479,642,003.60, 465,719,463,005.40 and 257,480,519,108.40

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Solution

The fourth proportional to 310,479,642,003.60, 465,719,463,005.40 and 257,480,519,108.40 is: 386,220,778,662.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,479,642,003.60 : 465,719,463,005.40 = 257,480,519,108.40 : x
  2. Step 2: Convert to fraction form
    310,479,642,003.60/465,719,463,005.40 = 257,480,519,108.40/x
  3. Step 3: Cross multiply
    310,479,642,003.60x = 465,719,463,005.40 × 257,480,519,108.40
  4. Step 4: Simplify right side
    310,479,642,003.60x = 119,913,689,093,515,677,532,160
  5. Step 5: Solve for x
    x = 119,913,689,093,515,677,532,160/310,479,642,003.60
  6. Step 6: Final answer
    x = 386,220,778,662.60

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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.