Home / 78,131,896.16-107,814,247.98-45,102,786.08

Finding the Fourth Proportional to 78,131,896.16, 107,814,247.98 and 45,102,786.08

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Solution

The fourth proportional to 78,131,896.16, 107,814,247.98 and 45,102,786.08 is: 62,237,360.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,131,896.16 : 107,814,247.98 = 45,102,786.08 : x
  2. Step 2: Convert to fraction form
    78,131,896.16/107,814,247.98 = 45,102,786.08/x
  3. Step 3: Cross multiply
    78,131,896.16x = 107,814,247.98 × 45,102,786.08
  4. Step 4: Simplify right side
    78,131,896.16x = 4,862,722,963,018,012
  5. Step 5: Solve for x
    x = 4,862,722,963,018,012/78,131,896.16
  6. Step 6: Final answer
    x = 62,237,360.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.