Home / 13,198,449,210.81-18,214,205,109.51-7,177,306,768.12

Finding the Fourth Proportional to 13,198,449,210.81, 18,214,205,109.51 and 7,177,306,768.12

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Solution

The fourth proportional to 13,198,449,210.81, 18,214,205,109.51 and 7,177,306,768.12 is: 9,904,871,058.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,198,449,210.81 : 18,214,205,109.51 = 7,177,306,768.12 : x
  2. Step 2: Convert to fraction form
    13,198,449,210.81/18,214,205,109.51 = 7,177,306,768.12/x
  3. Step 3: Cross multiply
    13,198,449,210.81x = 18,214,205,109.51 × 7,177,306,768.12
  4. Step 4: Simplify right side
    13,198,449,210.81x = 130,728,937,608,411,987,968
  5. Step 5: Solve for x
    x = 130,728,937,608,411,987,968/13,198,449,210.81
  6. Step 6: Final answer
    x = 9,904,871,058.74

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1.5x scale

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.