Home / 395,633,678.02-545,472,718.94-282,738,011.56

Finding the Fourth Proportional to 395,633,678.02, 545,472,718.94 and 282,738,011.56

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Solution

The fourth proportional to 395,633,678.02, 545,472,718.94 and 282,738,011.56 is: 389,819,877.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,633,678.02 : 545,472,718.94 = 282,738,011.56 : x
  2. Step 2: Convert to fraction form
    395,633,678.02/545,472,718.94 = 282,738,011.56/x
  3. Step 3: Cross multiply
    395,633,678.02x = 545,472,718.94 × 282,738,011.56
  4. Step 4: Simplify right side
    395,633,678.02x = 154,225,871,913,322,368
  5. Step 5: Solve for x
    x = 154,225,871,913,322,368/395,633,678.02
  6. Step 6: Final answer
    x = 389,819,877.53

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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.