Home / 13,507,564,962.75-18,640,441,415.48-7,486,459,091.61

Finding the Fourth Proportional to 13,507,564,962.75, 18,640,441,415.48 and 7,486,459,091.61

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Solution

The fourth proportional to 13,507,564,962.75, 18,640,441,415.48 and 7,486,459,091.61 is: 10,331,314,525.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,507,564,962.75 : 18,640,441,415.48 = 7,486,459,091.61 : x
  2. Step 2: Convert to fraction form
    13,507,564,962.75/18,640,441,415.48 = 7,486,459,091.61/x
  3. Step 3: Cross multiply
    13,507,564,962.75x = 18,640,441,415.48 × 7,486,459,091.61
  4. Step 4: Simplify right side
    13,507,564,962.75x = 139,550,902,106,506,379,264
  5. Step 5: Solve for x
    x = 139,550,902,106,506,379,264/13,507,564,962.75
  6. Step 6: Final answer
    x = 10,331,314,525.70

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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.