Home / 21,138,397,594.98-31,686,652,413.32-9,926,200,830.30

Finding the Fourth Proportional to 21,138,397,594.98, 31,686,652,413.32 and 9,926,200,830.30

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Solution

The fourth proportional to 21,138,397,594.98, 31,686,652,413.32 and 9,926,200,830.30 is: 14,879,466,339.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,138,397,594.98 : 31,686,652,413.32 = 9,926,200,830.30 : x
  2. Step 2: Convert to fraction form
    21,138,397,594.98/31,686,652,413.32 = 9,926,200,830.30/x
  3. Step 3: Cross multiply
    21,138,397,594.98x = 31,686,652,413.32 × 9,926,200,830.30
  4. Step 4: Simplify right side
    21,138,397,594.98x = 314,528,075,494,474,842,112
  5. Step 5: Solve for x
    x = 314,528,075,494,474,842,112/21,138,397,594.98
  6. Step 6: Final answer
    x = 14,879,466,339.93

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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.