Home / 15,290,878,735.74-21,102,473,203.44-9,269,637,923.28

Finding the Fourth Proportional to 15,290,878,735.74, 21,102,473,203.44 and 9,269,637,923.28

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Solution

The fourth proportional to 15,290,878,735.74, 21,102,473,203.44 and 9,269,637,923.28 is: 12,792,743,259.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,290,878,735.74 : 21,102,473,203.44 = 9,269,637,923.28 : x
  2. Step 2: Convert to fraction form
    15,290,878,735.74/21,102,473,203.44 = 9,269,637,923.28/x
  3. Step 3: Cross multiply
    15,290,878,735.74x = 21,102,473,203.44 × 9,269,637,923.28
  4. Step 4: Simplify right side
    15,290,878,735.74x = 195,612,285,881,607,421,952
  5. Step 5: Solve for x
    x = 195,612,285,881,607,421,952/15,290,878,735.74
  6. Step 6: Final answer
    x = 12,792,743,259.71

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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.