Home / 3,108,210,940.86-4,289,768,601.03-1,978,819,938.06

Finding the Fourth Proportional to 3,108,210,940.86, 4,289,768,601.03 and 1,978,819,938.06

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Solution

The fourth proportional to 3,108,210,940.86, 4,289,768,601.03 and 1,978,819,938.06 is: 2,731,050,047.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,108,210,940.86 : 4,289,768,601.03 = 1,978,819,938.06 : x
  2. Step 2: Convert to fraction form
    3,108,210,940.86/4,289,768,601.03 = 1,978,819,938.06/x
  3. Step 3: Cross multiply
    3,108,210,940.86x = 4,289,768,601.03 × 1,978,819,938.06
  4. Step 4: Simplify right side
    3,108,210,940.86x = 8,488,679,637,381,917,696
  5. Step 5: Solve for x
    x = 8,488,679,637,381,917,696/3,108,210,940.86
  6. Step 6: Final answer
    x = 2,731,050,047.41

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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.