Home / 117,869,962.63-162,727,970.91-78,231,247.37

Finding the Fourth Proportional to 117,869,962.63, 162,727,970.91 and 78,231,247.37

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Solution

The fourth proportional to 117,869,962.63, 162,727,970.91 and 78,231,247.37 is: 108,003,870.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,869,962.63 : 162,727,970.91 = 78,231,247.37 : x
  2. Step 2: Convert to fraction form
    117,869,962.63/162,727,970.91 = 78,231,247.37/x
  3. Step 3: Cross multiply
    117,869,962.63x = 162,727,970.91 × 78,231,247.37
  4. Step 4: Simplify right side
    117,869,962.63x = 12,730,412,145,887,218
  5. Step 5: Solve for x
    x = 12,730,412,145,887,218/117,869,962.63
  6. Step 6: Final answer
    x = 108,003,870.22

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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.