Home / 431,369,929.20-647,054,893.80-362,495,175.60

Finding the Fourth Proportional to 431,369,929.20, 647,054,893.80 and 362,495,175.60

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Solution

The fourth proportional to 431,369,929.20, 647,054,893.80 and 362,495,175.60 is: 543,742,763.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,369,929.20 : 647,054,893.80 = 362,495,175.60 : x
  2. Step 2: Convert to fraction form
    431,369,929.20/647,054,893.80 = 362,495,175.60/x
  3. Step 3: Cross multiply
    431,369,929.20x = 647,054,893.80 × 362,495,175.60
  4. Step 4: Simplify right side
    431,369,929.20x = 234,554,277,350,870,336
  5. Step 5: Solve for x
    x = 234,554,277,350,870,336/431,369,929.20
  6. Step 6: Final answer
    x = 543,742,763.40

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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.