Home / 143,344,940.40-214,881,192.36-91,383,686.64

Finding the Fourth Proportional to 143,344,940.40, 214,881,192.36 and 91,383,686.64

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Solution

The fourth proportional to 143,344,940.40, 214,881,192.36 and 91,383,686.64 is: 136,988,689.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,344,940.40 : 214,881,192.36 = 91,383,686.64 : x
  2. Step 2: Convert to fraction form
    143,344,940.40/214,881,192.36 = 91,383,686.64/x
  3. Step 3: Cross multiply
    143,344,940.40x = 214,881,192.36 × 91,383,686.64
  4. Step 4: Simplify right side
    143,344,940.40x = 19,636,635,547,455,804
  5. Step 5: Solve for x
    x = 19,636,635,547,455,804/143,344,940.40
  6. Step 6: Final answer
    x = 136,988,689.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.