Home / 145,449,556.83-200,724,647.40-79,374,312.68

Finding the Fourth Proportional to 145,449,556.83, 200,724,647.40 and 79,374,312.68

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Solution

The fourth proportional to 145,449,556.83, 200,724,647.40 and 79,374,312.68 is: 109,538,875.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,449,556.83 : 200,724,647.40 = 79,374,312.68 : x
  2. Step 2: Convert to fraction form
    145,449,556.83/200,724,647.40 = 79,374,312.68/x
  3. Step 3: Cross multiply
    145,449,556.83x = 200,724,647.40 × 79,374,312.68
  4. Step 4: Simplify right side
    145,449,556.83x = 15,932,380,924,306,726
  5. Step 5: Solve for x
    x = 15,932,380,924,306,726/145,449,556.83
  6. Step 6: Final answer
    x = 109,538,875.69

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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.