Home / 292,653,820.16-438,937,999.68-85,336,520.93

Finding the Fourth Proportional to 292,653,820.16, 438,937,999.68 and 85,336,520.93

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Solution

The fourth proportional to 292,653,820.16, 438,937,999.68 and 85,336,520.93 is: 127,992,321.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,653,820.16 : 438,937,999.68 = 85,336,520.93 : x
  2. Step 2: Convert to fraction form
    292,653,820.16/438,937,999.68 = 85,336,520.93/x
  3. Step 3: Cross multiply
    292,653,820.16x = 438,937,999.68 × 85,336,520.93
  4. Step 4: Simplify right side
    292,653,820.16x = 37,457,441,796,664,656
  5. Step 5: Solve for x
    x = 37,457,441,796,664,656/292,653,820.16
  6. Step 6: Final answer
    x = 127,992,321.36

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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.