Home / 199,478,191.92-298,957,749.72-81,165,071.31

Finding the Fourth Proportional to 199,478,191.92, 298,957,749.72 and 81,165,071.31

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Solution

The fourth proportional to 199,478,191.92, 298,957,749.72 and 81,165,071.31 is: 121,642,004.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,478,191.92 : 298,957,749.72 = 81,165,071.31 : x
  2. Step 2: Convert to fraction form
    199,478,191.92/298,957,749.72 = 81,165,071.31/x
  3. Step 3: Cross multiply
    199,478,191.92x = 298,957,749.72 × 81,165,071.31
  4. Step 4: Simplify right side
    199,478,191.92x = 24,264,927,074,700,936
  5. Step 5: Solve for x
    x = 24,264,927,074,700,936/199,478,191.92
  6. Step 6: Final answer
    x = 121,642,004.28

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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.