Home / 18,904,322,420.40-28,356,483,630.60-9,108,801,908.40

Finding the Fourth Proportional to 18,904,322,420.40, 28,356,483,630.60 and 9,108,801,908.40

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Solution

The fourth proportional to 18,904,322,420.40, 28,356,483,630.60 and 9,108,801,908.40 is: 13,663,202,862.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,904,322,420.40 : 28,356,483,630.60 = 9,108,801,908.40 : x
  2. Step 2: Convert to fraction form
    18,904,322,420.40/28,356,483,630.60 = 9,108,801,908.40/x
  3. Step 3: Cross multiply
    18,904,322,420.40x = 28,356,483,630.60 × 9,108,801,908.40
  4. Step 4: Simplify right side
    18,904,322,420.40x = 258,293,592,209,922,621,440
  5. Step 5: Solve for x
    x = 258,293,592,209,922,621,440/18,904,322,420.40
  6. Step 6: Final answer
    x = 13,663,202,862.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.