Home / 13,507,564,971.21-18,640,441,427.21-7,486,459,100.02

Finding the Fourth Proportional to 13,507,564,971.21, 18,640,441,427.21 and 7,486,459,100.02

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Solution

The fourth proportional to 13,507,564,971.21, 18,640,441,427.21 and 7,486,459,100.02 is: 10,331,314,537.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,507,564,971.21 : 18,640,441,427.21 = 7,486,459,100.02 : x
  2. Step 2: Convert to fraction form
    13,507,564,971.21/18,640,441,427.21 = 7,486,459,100.02/x
  3. Step 3: Cross multiply
    13,507,564,971.21x = 18,640,441,427.21 × 7,486,459,100.02
  4. Step 4: Simplify right side
    13,507,564,971.21x = 139,550,902,351,126,102,016
  5. Step 5: Solve for x
    x = 139,550,902,351,126,102,016/13,507,564,971.21
  6. Step 6: Final answer
    x = 10,331,314,537.34

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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.