Home / 121,430,775.27-167,574,690.32-66,426,631.77

Finding the Fourth Proportional to 121,430,775.27, 167,574,690.32 and 66,426,631.77

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Solution

The fourth proportional to 121,430,775.27, 167,574,690.32 and 66,426,631.77 is: 91,668,872.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,430,775.27 : 167,574,690.32 = 66,426,631.77 : x
  2. Step 2: Convert to fraction form
    121,430,775.27/167,574,690.32 = 66,426,631.77/x
  3. Step 3: Cross multiply
    121,430,775.27x = 167,574,690.32 × 66,426,631.77
  4. Step 4: Simplify right side
    121,430,775.27x = 11,131,422,247,858,424
  5. Step 5: Solve for x
    x = 11,131,422,247,858,424/121,430,775.27
  6. Step 6: Final answer
    x = 91,668,872.43

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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.