Home / 81,124,212.58-111,956,906.03-45,829,776.45

Finding the Fourth Proportional to 81,124,212.58, 111,956,906.03 and 45,829,776.45

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Solution

The fourth proportional to 81,124,212.58, 111,956,906.03 and 45,829,776.45 is: 63,248,194.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,124,212.58 : 111,956,906.03 = 45,829,776.45 : x
  2. Step 2: Convert to fraction form
    81,124,212.58/111,956,906.03 = 45,829,776.45/x
  3. Step 3: Cross multiply
    81,124,212.58x = 111,956,906.03 × 45,829,776.45
  4. Step 4: Simplify right side
    81,124,212.58x = 5,130,959,975,264,424
  5. Step 5: Solve for x
    x = 5,130,959,975,264,424/81,124,212.58
  6. Step 6: Final answer
    x = 63,248,194.49

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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.