Home / 782,328,847.80-1,173,493,271.70-472,392,456.60

Finding the Fourth Proportional to 782,328,847.80, 1,173,493,271.70 and 472,392,456.60

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Solution

The fourth proportional to 782,328,847.80, 1,173,493,271.70 and 472,392,456.60 is: 708,588,684.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,328,847.80 : 1,173,493,271.70 = 472,392,456.60 : x
  2. Step 2: Convert to fraction form
    782,328,847.80/1,173,493,271.70 = 472,392,456.60/x
  3. Step 3: Cross multiply
    782,328,847.80x = 1,173,493,271.70 × 472,392,456.60
  4. Step 4: Simplify right side
    782,328,847.80x = 554,349,369,421,934,336
  5. Step 5: Solve for x
    x = 554,349,369,421,934,336/782,328,847.80
  6. Step 6: Final answer
    x = 708,588,684.90

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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.