Home / 420,006,946.89-579,609,643.44-231,835,276.28

Finding the Fourth Proportional to 420,006,946.89, 579,609,643.44 and 231,835,276.28

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Solution

The fourth proportional to 420,006,946.89, 579,609,643.44 and 231,835,276.28 is: 319,932,712.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,006,946.89 : 579,609,643.44 = 231,835,276.28 : x
  2. Step 2: Convert to fraction form
    420,006,946.89/579,609,643.44 = 231,835,276.28/x
  3. Step 3: Cross multiply
    420,006,946.89x = 579,609,643.44 × 231,835,276.28
  4. Step 4: Simplify right side
    420,006,946.89x = 134,373,961,820,212,704
  5. Step 5: Solve for x
    x = 134,373,961,820,212,704/420,006,946.89
  6. Step 6: Final answer
    x = 319,932,712.58

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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.