Home / 15,290,878,748.24-21,102,473,220.70-9,269,637,935.78

Finding the Fourth Proportional to 15,290,878,748.24, 21,102,473,220.70 and 9,269,637,935.78

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Solution

The fourth proportional to 15,290,878,748.24, 21,102,473,220.70 and 9,269,637,935.78 is: 12,792,743,276.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,290,878,748.24 : 21,102,473,220.70 = 9,269,637,935.78 : x
  2. Step 2: Convert to fraction form
    15,290,878,748.24/21,102,473,220.70 = 9,269,637,935.78/x
  3. Step 3: Cross multiply
    15,290,878,748.24x = 21,102,473,220.70 × 9,269,637,935.78
  4. Step 4: Simplify right side
    15,290,878,748.24x = 195,612,286,305,382,301,696
  5. Step 5: Solve for x
    x = 195,612,286,305,382,301,696/15,290,878,748.24
  6. Step 6: Final answer
    x = 12,792,743,276.96

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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.