Home / 670,130,413.10-1,005,290,098.05-210,020,605.10

Finding the Fourth Proportional to 670,130,413.10, 1,005,290,098.05 and 210,020,605.10

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Solution

The fourth proportional to 670,130,413.10, 1,005,290,098.05 and 210,020,605.10 is: 315,060,517.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,130,413.10 : 1,005,290,098.05 = 210,020,605.10 : x
  2. Step 2: Convert to fraction form
    670,130,413.10/1,005,290,098.05 = 210,020,605.10/x
  3. Step 3: Cross multiply
    670,130,413.10x = 1,005,290,098.05 × 210,020,605.10
  4. Step 4: Simplify right side
    670,130,413.10x = 211,131,634,693,499,328
  5. Step 5: Solve for x
    x = 211,131,634,693,499,328/670,130,413.10
  6. Step 6: Final answer
    x = 315,060,517.42

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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.