Home / 287,054,976.60-430,288,532.10-141,264,307.80

Finding the Fourth Proportional to 287,054,976.60, 430,288,532.10 and 141,264,307.80

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Solution

The fourth proportional to 287,054,976.60, 430,288,532.10 and 141,264,307.80 is: 211,751,812.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,054,976.60 : 430,288,532.10 = 141,264,307.80 : x
  2. Step 2: Convert to fraction form
    287,054,976.60/430,288,532.10 = 141,264,307.80/x
  3. Step 3: Cross multiply
    287,054,976.60x = 430,288,532.10 × 141,264,307.80
  4. Step 4: Simplify right side
    287,054,976.60x = 60,784,411,641,384,592
  5. Step 5: Solve for x
    x = 60,784,411,641,384,592/287,054,976.60
  6. Step 6: Final answer
    x = 211,751,812.71

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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.