Home / 121,530,020.86-167,711,881.35-66,530,994.94

Finding the Fourth Proportional to 121,530,020.86, 167,711,881.35 and 66,530,994.94

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Solution

The fourth proportional to 121,530,020.86, 167,711,881.35 and 66,530,994.94 is: 91,813,020.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,530,020.86 : 167,711,881.35 = 66,530,994.94 : x
  2. Step 2: Convert to fraction form
    121,530,020.86/167,711,881.35 = 66,530,994.94/x
  3. Step 3: Cross multiply
    121,530,020.86x = 167,711,881.35 × 66,530,994.94
  4. Step 4: Simplify right side
    121,530,020.86x = 11,158,038,329,474,730
  5. Step 5: Solve for x
    x = 11,158,038,329,474,730/121,530,020.86
  6. Step 6: Final answer
    x = 91,813,020.77

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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.