Home / 76,608,280.40-114,912,420.60-47,886,846.80

Finding the Fourth Proportional to 76,608,280.40, 114,912,420.60 and 47,886,846.80

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Solution

The fourth proportional to 76,608,280.40, 114,912,420.60 and 47,886,846.80 is: 71,830,270.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,608,280.40 : 114,912,420.60 = 47,886,846.80 : x
  2. Step 2: Convert to fraction form
    76,608,280.40/114,912,420.60 = 47,886,846.80/x
  3. Step 3: Cross multiply
    76,608,280.40x = 114,912,420.60 × 47,886,846.80
  4. Step 4: Simplify right side
    76,608,280.40x = 5,502,793,480,689,363
  5. Step 5: Solve for x
    x = 5,502,793,480,689,363/76,608,280.40
  6. Step 6: Final answer
    x = 71,830,270.20

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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.