Home / 139,380,979.50-208,883,134.06-53,072,303.90

Finding the Fourth Proportional to 139,380,979.50, 208,883,134.06 and 53,072,303.90

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Solution

The fourth proportional to 139,380,979.50, 208,883,134.06 and 53,072,303.90 is: 79,536,743.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,380,979.50 : 208,883,134.06 = 53,072,303.90 : x
  2. Step 2: Convert to fraction form
    139,380,979.50/208,883,134.06 = 53,072,303.90/x
  3. Step 3: Cross multiply
    139,380,979.50x = 208,883,134.06 × 53,072,303.90
  4. Step 4: Simplify right side
    139,380,979.50x = 11,085,909,169,239,666
  5. Step 5: Solve for x
    x = 11,085,909,169,239,666/139,380,979.50
  6. Step 6: Final answer
    x = 79,536,743.17

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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.