Home / 31,109,142.40-46,663,713.60-19,762,403.20

Finding the Fourth Proportional to 31,109,142.40, 46,663,713.60 and 19,762,403.20

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Solution

The fourth proportional to 31,109,142.40, 46,663,713.60 and 19,762,403.20 is: 29,643,604.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,109,142.40 : 46,663,713.60 = 19,762,403.20 : x
  2. Step 2: Convert to fraction form
    31,109,142.40/46,663,713.60 = 19,762,403.20/x
  3. Step 3: Cross multiply
    31,109,142.40x = 46,663,713.60 × 19,762,403.20
  4. Step 4: Simplify right side
    31,109,142.40x = 922,187,122,972,523.50
  5. Step 5: Solve for x
    x = 922,187,122,972,523.50/31,109,142.40
  6. Step 6: Final answer
    x = 29,643,604.80

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1.5x scale

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.