Home / 143,146,543.20-214,719,814.80-70,505,201.52

Finding the Fourth Proportional to 143,146,543.20, 214,719,814.80 and 70,505,201.52

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Solution

The fourth proportional to 143,146,543.20, 214,719,814.80 and 70,505,201.52 is: 105,757,802.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,146,543.20 : 214,719,814.80 = 70,505,201.52 : x
  2. Step 2: Convert to fraction form
    143,146,543.20/214,719,814.80 = 70,505,201.52/x
  3. Step 3: Cross multiply
    143,146,543.20x = 214,719,814.80 × 70,505,201.52
  4. Step 4: Simplify right side
    143,146,543.20x = 15,138,863,812,811,078
  5. Step 5: Solve for x
    x = 15,138,863,812,811,078/143,146,543.20
  6. Step 6: Final answer
    x = 105,757,802.28

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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.