Home / 13,507,564,972.49-18,640,441,428.93-7,486,459,101.41

Finding the Fourth Proportional to 13,507,564,972.49, 18,640,441,428.93 and 7,486,459,101.41

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Solution

The fourth proportional to 13,507,564,972.49, 18,640,441,428.93 and 7,486,459,101.41 is: 10,331,314,539.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,507,564,972.49 : 18,640,441,428.93 = 7,486,459,101.41 : x
  2. Step 2: Convert to fraction form
    13,507,564,972.49/18,640,441,428.93 = 7,486,459,101.41/x
  3. Step 3: Cross multiply
    13,507,564,972.49x = 18,640,441,428.93 × 7,486,459,101.41
  4. Step 4: Simplify right side
    13,507,564,972.49x = 139,550,902,389,819,817,984
  5. Step 5: Solve for x
    x = 139,550,902,389,819,817,984/13,507,564,972.49
  6. Step 6: Final answer
    x = 10,331,314,539.23

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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.