Home / 142,515,715.12-213,769,832.80-45,477,344.16

Finding the Fourth Proportional to 142,515,715.12, 213,769,832.80 and 45,477,344.16

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Solution

The fourth proportional to 142,515,715.12, 213,769,832.80 and 45,477,344.16 is: 68,214,822.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,515,715.12 : 213,769,832.80 = 45,477,344.16 : x
  2. Step 2: Convert to fraction form
    142,515,715.12/213,769,832.80 = 45,477,344.16/x
  3. Step 3: Cross multiply
    142,515,715.12x = 213,769,832.80 × 45,477,344.16
  4. Step 4: Simplify right side
    142,515,715.12x = 9,721,684,257,271,256
  5. Step 5: Solve for x
    x = 9,721,684,257,271,256/142,515,715.12
  6. Step 6: Final answer
    x = 68,214,822.83

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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.