Home / 386,042,681.60-579,064,022.40-325,576,505.60

Finding the Fourth Proportional to 386,042,681.60, 579,064,022.40 and 325,576,505.60

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Solution

The fourth proportional to 386,042,681.60, 579,064,022.40 and 325,576,505.60 is: 488,364,758.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,042,681.60 : 579,064,022.40 = 325,576,505.60 : x
  2. Step 2: Convert to fraction form
    386,042,681.60/579,064,022.40 = 325,576,505.60/x
  3. Step 3: Cross multiply
    386,042,681.60x = 579,064,022.40 × 325,576,505.60
  4. Step 4: Simplify right side
    386,042,681.60x = 188,529,640,931,672,128
  5. Step 5: Solve for x
    x = 188,529,640,931,672,128/386,042,681.60
  6. Step 6: Final answer
    x = 488,364,758.40

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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.