Home / 648,592,718.72-972,915,984.05-188,530,887.96

Finding the Fourth Proportional to 648,592,718.72, 972,915,984.05 and 188,530,887.96

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Solution

The fourth proportional to 648,592,718.72, 972,915,984.05 and 188,530,887.96 is: 282,804,152.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,592,718.72 : 972,915,984.05 = 188,530,887.96 : x
  2. Step 2: Convert to fraction form
    648,592,718.72/972,915,984.05 = 188,530,887.96/x
  3. Step 3: Cross multiply
    648,592,718.72x = 972,915,984.05 × 188,530,887.96
  4. Step 4: Simplify right side
    648,592,718.72x = 183,424,714,382,481,056
  5. Step 5: Solve for x
    x = 183,424,714,382,481,056/648,592,718.72
  6. Step 6: Final answer
    x = 282,804,152.88

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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.