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Finding the Fourth Proportional to 286,293,416.40, 429,566,095.80 and 132,860,494.80

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Solution

The fourth proportional to 286,293,416.40, 429,566,095.80 and 132,860,494.80 is: 199,349,201.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,293,416.40 : 429,566,095.80 = 132,860,494.80 : x
  2. Step 2: Convert to fraction form
    286,293,416.40/429,566,095.80 = 132,860,494.80/x
  3. Step 3: Cross multiply
    286,293,416.40x = 429,566,095.80 × 132,860,494.80
  4. Step 4: Simplify right side
    286,293,416.40x = 57,072,364,037,292,200
  5. Step 5: Solve for x
    x = 57,072,364,037,292,200/286,293,416.40
  6. Step 6: Final answer
    x = 199,349,201.79

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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.