Home / 1,330,139,131.99-1,994,594,561.73-489,570,736.69

Finding the Fourth Proportional to 1,330,139,131.99, 1,994,594,561.73 and 489,570,736.69

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Solution

The fourth proportional to 1,330,139,131.99, 1,994,594,561.73 and 489,570,736.69 is: 734,130,066.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,139,131.99 : 1,994,594,561.73 = 489,570,736.69 : x
  2. Step 2: Convert to fraction form
    1,330,139,131.99/1,994,594,561.73 = 489,570,736.69/x
  3. Step 3: Cross multiply
    1,330,139,131.99x = 1,994,594,561.73 × 489,570,736.69
  4. Step 4: Simplify right side
    1,330,139,131.99x = 976,495,128,992,836,224
  5. Step 5: Solve for x
    x = 976,495,128,992,836,224/1,330,139,131.99
  6. Step 6: Final answer
    x = 734,130,066.18

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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.