Home / 3,108,098,811.72-4,289,187,783.96-1,698,402,986.76

Finding the Fourth Proportional to 3,108,098,811.72, 4,289,187,783.96 and 1,698,402,986.76

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Solution

The fourth proportional to 3,108,098,811.72, 4,289,187,783.96 and 1,698,402,986.76 is: 2,343,802,364.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,108,098,811.72 : 4,289,187,783.96 = 1,698,402,986.76 : x
  2. Step 2: Convert to fraction form
    3,108,098,811.72/4,289,187,783.96 = 1,698,402,986.76/x
  3. Step 3: Cross multiply
    3,108,098,811.72x = 4,289,187,783.96 × 1,698,402,986.76
  4. Step 4: Simplify right side
    3,108,098,811.72x = 7,284,769,343,052,169,216
  5. Step 5: Solve for x
    x = 7,284,769,343,052,169,216/3,108,098,811.72
  6. Step 6: Final answer
    x = 2,343,802,364.19

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1.5x scale

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.