Home / 290,020,351.86-435,026,268.30-71,670,688.06

Finding the Fourth Proportional to 290,020,351.86, 435,026,268.30 and 71,670,688.06

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Solution

The fourth proportional to 290,020,351.86, 435,026,268.30 and 71,670,688.06 is: 107,504,979.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,020,351.86 : 435,026,268.30 = 71,670,688.06 : x
  2. Step 2: Convert to fraction form
    290,020,351.86/435,026,268.30 = 71,670,688.06/x
  3. Step 3: Cross multiply
    290,020,351.86x = 435,026,268.30 × 71,670,688.06
  4. Step 4: Simplify right side
    290,020,351.86x = 31,178,631,973,235,168
  5. Step 5: Solve for x
    x = 31,178,631,973,235,168/290,020,351.86
  6. Step 6: Final answer
    x = 107,504,979.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.