Home / 830,508,762.40-1,245,603,711.30-248,262,002.80

Finding the Fourth Proportional to 830,508,762.40, 1,245,603,711.30 and 248,262,002.80

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Solution

The fourth proportional to 830,508,762.40, 1,245,603,711.30 and 248,262,002.80 is: 372,345,345.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,508,762.40 : 1,245,603,711.30 = 248,262,002.80 : x
  2. Step 2: Convert to fraction form
    830,508,762.40/1,245,603,711.30 = 248,262,002.80/x
  3. Step 3: Cross multiply
    830,508,762.40x = 1,245,603,711.30 × 248,262,002.80
  4. Step 4: Simplify right side
    830,508,762.40x = 309,236,072,062,451,008
  5. Step 5: Solve for x
    x = 309,236,072,062,451,008/830,508,762.40
  6. Step 6: Final answer
    x = 372,345,345.48

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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.