Home / 186,570,129.80-257,549,348.40-120,522,839.06

Finding the Fourth Proportional to 186,570,129.80, 257,549,348.40 and 120,522,839.06

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Solution

The fourth proportional to 186,570,129.80, 257,549,348.40 and 120,522,839.06 is: 166,374,857.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,570,129.80 : 257,549,348.40 = 120,522,839.06 : x
  2. Step 2: Convert to fraction form
    186,570,129.80/257,549,348.40 = 120,522,839.06/x
  3. Step 3: Cross multiply
    186,570,129.80x = 257,549,348.40 × 120,522,839.06
  4. Step 4: Simplify right side
    186,570,129.80x = 31,040,578,667,221,068
  5. Step 5: Solve for x
    x = 31,040,578,667,221,068/186,570,129.80
  6. Step 6: Final answer
    x = 166,374,857.01

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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.