Home / 645,038,907.96-890,229,263.91-366,622,282.47

Finding the Fourth Proportional to 645,038,907.96, 890,229,263.91 and 366,622,282.47

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Solution

The fourth proportional to 645,038,907.96, 890,229,263.91 and 366,622,282.47 is: 505,981,702.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,038,907.96 : 890,229,263.91 = 366,622,282.47 : x
  2. Step 2: Convert to fraction form
    645,038,907.96/890,229,263.91 = 366,622,282.47/x
  3. Step 3: Cross multiply
    645,038,907.96x = 890,229,263.91 × 366,622,282.47
  4. Step 4: Simplify right side
    645,038,907.96x = 326,377,884,656,272,192
  5. Step 5: Solve for x
    x = 326,377,884,656,272,192/645,038,907.96
  6. Step 6: Final answer
    x = 505,981,702.23

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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.