Home / 286,170,647.20-429,397,688.40-163,443,205.60

Finding the Fourth Proportional to 286,170,647.20, 429,397,688.40 and 163,443,205.60

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Solution

The fourth proportional to 286,170,647.20, 429,397,688.40 and 163,443,205.60 is: 245,245,748.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,170,647.20 : 429,397,688.40 = 163,443,205.60 : x
  2. Step 2: Convert to fraction form
    286,170,647.20/429,397,688.40 = 163,443,205.60/x
  3. Step 3: Cross multiply
    286,170,647.20x = 429,397,688.40 × 163,443,205.60
  4. Step 4: Simplify right side
    286,170,647.20x = 70,182,134,669,325,928
  5. Step 5: Solve for x
    x = 70,182,134,669,325,928/286,170,647.20
  6. Step 6: Final answer
    x = 245,245,748.84

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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.