Home / 15,290,878,738.74-21,102,473,207.58-9,269,637,926.28

Finding the Fourth Proportional to 15,290,878,738.74, 21,102,473,207.58 and 9,269,637,926.28

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Solution

The fourth proportional to 15,290,878,738.74, 21,102,473,207.58 and 9,269,637,926.28 is: 12,792,743,263.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,290,878,738.74 : 21,102,473,207.58 = 9,269,637,926.28 : x
  2. Step 2: Convert to fraction form
    15,290,878,738.74/21,102,473,207.58 = 9,269,637,926.28/x
  3. Step 3: Cross multiply
    15,290,878,738.74x = 21,102,473,207.58 × 9,269,637,926.28
  4. Step 4: Simplify right side
    15,290,878,738.74x = 195,612,285,983,291,179,008
  5. Step 5: Solve for x
    x = 195,612,285,983,291,179,008/15,290,878,738.74
  6. Step 6: Final answer
    x = 12,792,743,263.85

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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.