Home / 105,165,000.80-157,747,501.20-79,655,832.80

Finding the Fourth Proportional to 105,165,000.80, 157,747,501.20 and 79,655,832.80

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Solution

The fourth proportional to 105,165,000.80, 157,747,501.20 and 79,655,832.80 is: 119,483,749.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,165,000.80 : 157,747,501.20 = 79,655,832.80 : x
  2. Step 2: Convert to fraction form
    105,165,000.80/157,747,501.20 = 79,655,832.80/x
  3. Step 3: Cross multiply
    105,165,000.80x = 157,747,501.20 × 79,655,832.80
  4. Step 4: Simplify right side
    105,165,000.80x = 12,565,508,580,204,998
  5. Step 5: Solve for x
    x = 12,565,508,580,204,998/105,165,000.80
  6. Step 6: Final answer
    x = 119,483,749.20

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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.