Home / 13,507,564,994.08-18,640,441,458.64-7,486,459,122.88

Finding the Fourth Proportional to 13,507,564,994.08, 18,640,441,458.64 and 7,486,459,122.88

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Solution

The fourth proportional to 13,507,564,994.08, 18,640,441,458.64 and 7,486,459,122.88 is: 10,331,314,568.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,507,564,994.08 : 18,640,441,458.64 = 7,486,459,122.88 : x
  2. Step 2: Convert to fraction form
    13,507,564,994.08/18,640,441,458.64 = 7,486,459,122.88/x
  3. Step 3: Cross multiply
    13,507,564,994.08x = 18,640,441,458.64 × 7,486,459,122.88
  4. Step 4: Simplify right side
    13,507,564,994.08x = 139,550,903,012,546,002,944
  5. Step 5: Solve for x
    x = 139,550,903,012,546,002,944/13,507,564,994.08
  6. Step 6: Final answer
    x = 10,331,314,568.81

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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.