Home / 15,290,878,750.24-21,102,473,223.46-9,269,637,937.78

Finding the Fourth Proportional to 15,290,878,750.24, 21,102,473,223.46 and 9,269,637,937.78

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Solution

The fourth proportional to 15,290,878,750.24, 21,102,473,223.46 and 9,269,637,937.78 is: 12,792,743,279.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,290,878,750.24 : 21,102,473,223.46 = 9,269,637,937.78 : x
  2. Step 2: Convert to fraction form
    15,290,878,750.24/21,102,473,223.46 = 9,269,637,937.78/x
  3. Step 3: Cross multiply
    15,290,878,750.24x = 21,102,473,223.46 × 9,269,637,937.78
  4. Step 4: Simplify right side
    15,290,878,750.24x = 195,612,286,373,171,429,376
  5. Step 5: Solve for x
    x = 195,612,286,373,171,429,376/15,290,878,750.24
  6. Step 6: Final answer
    x = 12,792,743,279.72

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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.