Home / 186,570,139.80-257,549,362.20-120,522,849.06

Finding the Fourth Proportional to 186,570,139.80, 257,549,362.20 and 120,522,849.06

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Solution

The fourth proportional to 186,570,139.80, 257,549,362.20 and 120,522,849.06 is: 166,374,870.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,570,139.80 : 257,549,362.20 = 120,522,849.06 : x
  2. Step 2: Convert to fraction form
    186,570,139.80/257,549,362.20 = 120,522,849.06/x
  3. Step 3: Cross multiply
    186,570,139.80x = 257,549,362.20 × 120,522,849.06
  4. Step 4: Simplify right side
    186,570,139.80x = 31,040,582,905,929,868
  5. Step 5: Solve for x
    x = 31,040,582,905,929,868/186,570,139.80
  6. Step 6: Final answer
    x = 166,374,870.81

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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.