Home / 320,010,448.36-480,015,857.98-89,979,533.02

Finding the Fourth Proportional to 320,010,448.36, 480,015,857.98 and 89,979,533.02

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Solution

The fourth proportional to 320,010,448.36, 480,015,857.98 and 89,979,533.02 is: 134,969,351.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,010,448.36 : 480,015,857.98 = 89,979,533.02 : x
  2. Step 2: Convert to fraction form
    320,010,448.36/480,015,857.98 = 89,979,533.02/x
  3. Step 3: Cross multiply
    320,010,448.36x = 480,015,857.98 × 89,979,533.02
  4. Step 4: Simplify right side
    320,010,448.36x = 43,191,602,743,235,040
  5. Step 5: Solve for x
    x = 43,191,602,743,235,040/320,010,448.36
  6. Step 6: Final answer
    x = 134,969,351.67

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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.