Home / 142,489,416.48-196,618,805.91-79,768,948.92

Finding the Fourth Proportional to 142,489,416.48, 196,618,805.91 and 79,768,948.92

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Solution

The fourth proportional to 142,489,416.48, 196,618,805.91 and 79,768,948.92 is: 110,071,862.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,489,416.48 : 196,618,805.91 = 79,768,948.92 : x
  2. Step 2: Convert to fraction form
    142,489,416.48/196,618,805.91 = 79,768,948.92/x
  3. Step 3: Cross multiply
    142,489,416.48x = 196,618,805.91 × 79,768,948.92
  4. Step 4: Simplify right side
    142,489,416.48x = 15,684,075,485,346,184
  5. Step 5: Solve for x
    x = 15,684,075,485,346,184/142,489,416.48
  6. Step 6: Final answer
    x = 110,071,862.69

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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.