Home / 186,570,128.30-257,549,346.33-120,522,837.56

Finding the Fourth Proportional to 186,570,128.30, 257,549,346.33 and 120,522,837.56

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Solution

The fourth proportional to 186,570,128.30, 257,549,346.33 and 120,522,837.56 is: 166,374,854.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,570,128.30 : 257,549,346.33 = 120,522,837.56 : x
  2. Step 2: Convert to fraction form
    186,570,128.30/257,549,346.33 = 120,522,837.56/x
  3. Step 3: Cross multiply
    186,570,128.30x = 257,549,346.33 × 120,522,837.56
  4. Step 4: Simplify right side
    186,570,128.30x = 31,040,578,031,414,776
  5. Step 5: Solve for x
    x = 31,040,578,031,414,776/186,570,128.30
  6. Step 6: Final answer
    x = 166,374,854.94

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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.