Home / 121,133,045.84-167,162,752.88-66,128,902.32

Finding the Fourth Proportional to 121,133,045.84, 167,162,752.88 and 66,128,902.32

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Solution

The fourth proportional to 121,133,045.84, 167,162,752.88 and 66,128,902.32 is: 91,257,420.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,133,045.84 : 167,162,752.88 = 66,128,902.32 : x
  2. Step 2: Convert to fraction form
    121,133,045.84/167,162,752.88 = 66,128,902.32/x
  3. Step 3: Cross multiply
    121,133,045.84x = 167,162,752.88 × 66,128,902.32
  4. Step 4: Simplify right side
    121,133,045.84x = 11,054,289,356,743,818
  5. Step 5: Solve for x
    x = 11,054,289,356,743,818/121,133,045.84
  6. Step 6: Final answer
    x = 91,257,420.96

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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.