Home / 121,903,622.80-168,179,108.70-69,664,633

Finding the Fourth Proportional to 121,903,622.80, 168,179,108.70 and 69,664,633

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Solution

The fourth proportional to 121,903,622.80, 168,179,108.70 and 69,664,633 is: 96,109,825.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,903,622.80 : 168,179,108.70 = 69,664,633 : x
  2. Step 2: Convert to fraction form
    121,903,622.80/168,179,108.70 = 69,664,633/x
  3. Step 3: Cross multiply
    121,903,622.80x = 168,179,108.70 × 69,664,633
  4. Step 4: Simplify right side
    121,903,622.80x = 11,716,135,885,852,606
  5. Step 5: Solve for x
    x = 11,716,135,885,852,606/121,903,622.80
  6. Step 6: Final answer
    x = 96,109,825.26

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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.