Home / 553,768,015.72-830,588,571.42-144,863,634.28

Finding the Fourth Proportional to 553,768,015.72, 830,588,571.42 and 144,863,634.28

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Solution

The fourth proportional to 553,768,015.72, 830,588,571.42 and 144,863,634.28 is: 217,278,852.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,768,015.72 : 830,588,571.42 = 144,863,634.28 : x
  2. Step 2: Convert to fraction form
    553,768,015.72/830,588,571.42 = 144,863,634.28/x
  3. Step 3: Cross multiply
    553,768,015.72x = 830,588,571.42 × 144,863,634.28
  4. Step 4: Simplify right side
    553,768,015.72x = 120,322,079,047,334,528
  5. Step 5: Solve for x
    x = 120,322,079,047,334,528/553,768,015.72
  6. Step 6: Final answer
    x = 217,278,852.57

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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.