Home / 142,416,006.40-213,624,009.60-132,860,857.60

Finding the Fourth Proportional to 142,416,006.40, 213,624,009.60 and 132,860,857.60

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Solution

The fourth proportional to 142,416,006.40, 213,624,009.60 and 132,860,857.60 is: 199,291,286.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,416,006.40 : 213,624,009.60 = 132,860,857.60 : x
  2. Step 2: Convert to fraction form
    142,416,006.40/213,624,009.60 = 132,860,857.60/x
  3. Step 3: Cross multiply
    142,416,006.40x = 213,624,009.60 × 132,860,857.60
  4. Step 4: Simplify right side
    142,416,006.40x = 28,382,269,119,406,632
  5. Step 5: Solve for x
    x = 28,382,269,119,406,632/142,416,006.40
  6. Step 6: Final answer
    x = 199,291,286.40

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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.