Home / 637,718,933.60-956,578,400.40-407,947,464.80

Finding the Fourth Proportional to 637,718,933.60, 956,578,400.40 and 407,947,464.80

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Solution

The fourth proportional to 637,718,933.60, 956,578,400.40 and 407,947,464.80 is: 611,921,197.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,718,933.60 : 956,578,400.40 = 407,947,464.80 : x
  2. Step 2: Convert to fraction form
    637,718,933.60/956,578,400.40 = 407,947,464.80/x
  3. Step 3: Cross multiply
    637,718,933.60x = 956,578,400.40 × 407,947,464.80
  4. Step 4: Simplify right side
    637,718,933.60x = 390,233,733,325,619,328
  5. Step 5: Solve for x
    x = 390,233,733,325,619,328/637,718,933.60
  6. Step 6: Final answer
    x = 611,921,197.20

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Similar ratio
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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.