Home / 286,272,016.80-429,408,025.20-70,861,264.80

Finding the Fourth Proportional to 286,272,016.80, 429,408,025.20 and 70,861,264.80

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Solution

The fourth proportional to 286,272,016.80, 429,408,025.20 and 70,861,264.80 is: 106,291,897.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,272,016.80 : 429,408,025.20 = 70,861,264.80 : x
  2. Step 2: Convert to fraction form
    286,272,016.80/429,408,025.20 = 70,861,264.80/x
  3. Step 3: Cross multiply
    286,272,016.80x = 429,408,025.20 × 70,861,264.80
  4. Step 4: Simplify right side
    286,272,016.80x = 30,428,395,780,942,272
  5. Step 5: Solve for x
    x = 30,428,395,780,942,272/286,272,016.80
  6. Step 6: Final answer
    x = 106,291,897.20

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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.