Home / 78,227,743.03-107,954,018.46-42,944,669.20

Finding the Fourth Proportional to 78,227,743.03, 107,954,018.46 and 42,944,669.20

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Solution

The fourth proportional to 78,227,743.03, 107,954,018.46 and 42,944,669.20 is: 59,263,496.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,227,743.03 : 107,954,018.46 = 42,944,669.20 : x
  2. Step 2: Convert to fraction form
    78,227,743.03/107,954,018.46 = 42,944,669.20/x
  3. Step 3: Cross multiply
    78,227,743.03x = 107,954,018.46 × 42,944,669.20
  4. Step 4: Simplify right side
    78,227,743.03x = 4,636,049,611,710,336
  5. Step 5: Solve for x
    x = 4,636,049,611,710,336/78,227,743.03
  6. Step 6: Final answer
    x = 59,263,496.97

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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.