Home / 13,376,640.51-18,459,799.16-7,870,222.85

Finding the Fourth Proportional to 13,376,640.51, 18,459,799.16 and 7,870,222.85

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Solution

The fourth proportional to 13,376,640.51, 18,459,799.16 and 7,870,222.85 is: 10,860,928.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,376,640.51 : 18,459,799.16 = 7,870,222.85 : x
  2. Step 2: Convert to fraction form
    13,376,640.51/18,459,799.16 = 7,870,222.85/x
  3. Step 3: Cross multiply
    13,376,640.51x = 18,459,799.16 × 7,870,222.85
  4. Step 4: Simplify right side
    13,376,640.51x = 145,282,733,023,792.69
  5. Step 5: Solve for x
    x = 145,282,733,023,792.69/13,376,640.51
  6. Step 6: Final answer
    x = 10,860,928.27

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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.