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Finding the Fourth Proportional to 287,593,345.80, 431,390,018.70 and 241,676,843.40

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Solution

The fourth proportional to 287,593,345.80, 431,390,018.70 and 241,676,843.40 is: 362,515,265.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,593,345.80 : 431,390,018.70 = 241,676,843.40 : x
  2. Step 2: Convert to fraction form
    287,593,345.80/431,390,018.70 = 241,676,843.40/x
  3. Step 3: Cross multiply
    287,593,345.80x = 431,390,018.70 × 241,676,843.40
  4. Step 4: Simplify right side
    287,593,345.80x = 104,256,977,993,682,976
  5. Step 5: Solve for x
    x = 104,256,977,993,682,976/287,593,345.80
  6. Step 6: Final answer
    x = 362,515,265.10

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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.