Home / 76,778,795.50-105,955,442.80-43,738,554.95

Finding the Fourth Proportional to 76,778,795.50, 105,955,442.80 and 43,738,554.95

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Solution

The fourth proportional to 76,778,795.50, 105,955,442.80 and 43,738,554.95 is: 60,359,607.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,778,795.50 : 105,955,442.80 = 43,738,554.95 : x
  2. Step 2: Convert to fraction form
    76,778,795.50/105,955,442.80 = 43,738,554.95/x
  3. Step 3: Cross multiply
    76,778,795.50x = 105,955,442.80 × 43,738,554.95
  4. Step 4: Simplify right side
    76,778,795.50x = 4,634,337,956,785,147
  5. Step 5: Solve for x
    x = 4,634,337,956,785,147/76,778,795.50
  6. Step 6: Final answer
    x = 60,359,607.45

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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.