Home / 138,997,738.08-191,816,903.43-77,117,929.02

Finding the Fourth Proportional to 138,997,738.08, 191,816,903.43 and 77,117,929.02

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Solution

The fourth proportional to 138,997,738.08, 191,816,903.43 and 77,117,929.02 is: 106,422,755.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,997,738.08 : 191,816,903.43 = 77,117,929.02 : x
  2. Step 2: Convert to fraction form
    138,997,738.08/191,816,903.43 = 77,117,929.02/x
  3. Step 3: Cross multiply
    138,997,738.08x = 191,816,903.43 × 77,117,929.02
  4. Step 4: Simplify right side
    138,997,738.08x = 14,792,522,343,550,934
  5. Step 5: Solve for x
    x = 14,792,522,343,550,934/138,997,738.08
  6. Step 6: Final answer
    x = 106,422,755.85

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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.