Home / 772,503,416.82-1,066,082,749.02-442,542,328.74

Finding the Fourth Proportional to 772,503,416.82, 1,066,082,749.02 and 442,542,328.74

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Solution

The fourth proportional to 772,503,416.82, 1,066,082,749.02 and 442,542,328.74 is: 610,724,473.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,503,416.82 : 1,066,082,749.02 = 442,542,328.74 : x
  2. Step 2: Convert to fraction form
    772,503,416.82/1,066,082,749.02 = 442,542,328.74/x
  3. Step 3: Cross multiply
    772,503,416.82x = 1,066,082,749.02 × 442,542,328.74
  4. Step 4: Simplify right side
    772,503,416.82x = 471,786,742,380,851,776
  5. Step 5: Solve for x
    x = 471,786,742,380,851,776/772,503,416.82
  6. Step 6: Final answer
    x = 610,724,473.33

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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.