Home / 76,655,584-105,783,740.40-43,615,729.36

Finding the Fourth Proportional to 76,655,584, 105,783,740.40 and 43,615,729.36

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Solution

The fourth proportional to 76,655,584, 105,783,740.40 and 43,615,729.36 is: 60,189,157.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,655,584 : 105,783,740.40 = 43,615,729.36 : x
  2. Step 2: Convert to fraction form
    76,655,584/105,783,740.40 = 43,615,729.36/x
  3. Step 3: Cross multiply
    76,655,584x = 105,783,740.40 × 43,615,729.36
  4. Step 4: Simplify right side
    76,655,584x = 4,613,834,991,974,898
  5. Step 5: Solve for x
    x = 4,613,834,991,974,898/76,655,584
  6. Step 6: Final answer
    x = 60,189,157.15

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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.