Home / 415,456,278,928.65-622,372,824,836.25-286,208,824,483.72

Finding the Fourth Proportional to 415,456,278,928.65, 622,372,824,836.25 and 286,208,824,483.72

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Solution

The fourth proportional to 415,456,278,928.65, 622,372,824,836.25 and 286,208,824,483.72 is: 428,754,127,982.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,456,278,928.65 : 622,372,824,836.25 = 286,208,824,483.72 : x
  2. Step 2: Convert to fraction form
    415,456,278,928.65/622,372,824,836.25 = 286,208,824,483.72/x
  3. Step 3: Cross multiply
    415,456,278,928.65x = 622,372,824,836.25 × 286,208,824,483.72
  4. Step 4: Simplify right side
    415,456,278,928.65x = 178,128,594,586,995,263,537,152
  5. Step 5: Solve for x
    x = 178,128,594,586,995,263,537,152/415,456,278,928.65
  6. Step 6: Final answer
    x = 428,754,127,982.71

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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.