Home / 121,133,041.68-167,162,747.15-66,128,898.18

Finding the Fourth Proportional to 121,133,041.68, 167,162,747.15 and 66,128,898.18

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Solution

The fourth proportional to 121,133,041.68, 167,162,747.15 and 66,128,898.18 is: 91,257,415.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,133,041.68 : 167,162,747.15 = 66,128,898.18 : x
  2. Step 2: Convert to fraction form
    121,133,041.68/167,162,747.15 = 66,128,898.18/x
  3. Step 3: Cross multiply
    121,133,041.68x = 167,162,747.15 × 66,128,898.18
  4. Step 4: Simplify right side
    121,133,041.68x = 11,054,288,285,440,792
  5. Step 5: Solve for x
    x = 11,054,288,285,440,792/121,133,041.68
  6. Step 6: Final answer
    x = 91,257,415.25

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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.