Home / 155,518,521.31-233,091,777.60-72,408,234.79

Finding the Fourth Proportional to 155,518,521.31, 233,091,777.60 and 72,408,234.79

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Solution

The fourth proportional to 155,518,521.31, 233,091,777.60 and 72,408,234.79 is: 108,525,749.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,518,521.31 : 233,091,777.60 = 72,408,234.79 : x
  2. Step 2: Convert to fraction form
    155,518,521.31/233,091,777.60 = 72,408,234.79/x
  3. Step 3: Cross multiply
    155,518,521.31x = 233,091,777.60 × 72,408,234.79
  4. Step 4: Simplify right side
    155,518,521.31x = 16,877,764,160,370,628
  5. Step 5: Solve for x
    x = 16,877,764,160,370,628/155,518,521.31
  6. Step 6: Final answer
    x = 108,525,749.98

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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.