Home / 286,391,775.20-429,811,611.60-133,056,831.20

Finding the Fourth Proportional to 286,391,775.20, 429,811,611.60 and 133,056,831.20

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Solution

The fourth proportional to 286,391,775.20, 429,811,611.60 and 133,056,831.20 is: 199,689,292.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,391,775.20 : 429,811,611.60 = 133,056,831.20 : x
  2. Step 2: Convert to fraction form
    286,391,775.20/429,811,611.60 = 133,056,831.20/x
  3. Step 3: Cross multiply
    286,391,775.20x = 429,811,611.60 × 133,056,831.20
  4. Step 4: Simplify right side
    286,391,775.20x = 57,189,371,052,461,168
  5. Step 5: Solve for x
    x = 57,189,371,052,461,168/286,391,775.20
  6. Step 6: Final answer
    x = 199,689,292.80

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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.