Home / 476,719,790.40-715,079,685.60-425,323,540.80

Finding the Fourth Proportional to 476,719,790.40, 715,079,685.60 and 425,323,540.80

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Solution

The fourth proportional to 476,719,790.40, 715,079,685.60 and 425,323,540.80 is: 637,985,311.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,719,790.40 : 715,079,685.60 = 425,323,540.80 : x
  2. Step 2: Convert to fraction form
    476,719,790.40/715,079,685.60 = 425,323,540.80/x
  3. Step 3: Cross multiply
    476,719,790.40x = 715,079,685.60 × 425,323,540.80
  4. Step 4: Simplify right side
    476,719,790.40x = 304,140,223,833,542,784
  5. Step 5: Solve for x
    x = 304,140,223,833,542,784/476,719,790.40
  6. Step 6: Final answer
    x = 637,985,311.20

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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.