Home / 415,172,413.20-622,758,619.80-262,290,032.40

Finding the Fourth Proportional to 415,172,413.20, 622,758,619.80 and 262,290,032.40

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Solution

The fourth proportional to 415,172,413.20, 622,758,619.80 and 262,290,032.40 is: 393,435,048.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,172,413.20 : 622,758,619.80 = 262,290,032.40 : x
  2. Step 2: Convert to fraction form
    415,172,413.20/622,758,619.80 = 262,290,032.40/x
  3. Step 3: Cross multiply
    415,172,413.20x = 622,758,619.80 × 262,290,032.40
  4. Step 4: Simplify right side
    415,172,413.20x = 163,343,378,564,721,280
  5. Step 5: Solve for x
    x = 163,343,378,564,721,280/415,172,413.20
  6. Step 6: Final answer
    x = 393,435,048.60

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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.