Home / 100,081,365-138,111,350.50-56,621,301

Finding the Fourth Proportional to 100,081,365, 138,111,350.50 and 56,621,301

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Solution

The fourth proportional to 100,081,365, 138,111,350.50 and 56,621,301 is: 78,136,867.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,081,365 : 138,111,350.50 = 56,621,301 : x
  2. Step 2: Convert to fraction form
    100,081,365/138,111,350.50 = 56,621,301/x
  3. Step 3: Cross multiply
    100,081,365x = 138,111,350.50 × 56,621,301
  4. Step 4: Simplify right side
    100,081,365x = 7,820,044,348,177,000
  5. Step 5: Solve for x
    x = 7,820,044,348,177,000/100,081,365
  6. Step 6: Final answer
    x = 78,136,867.42

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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.