Home / 21,671,397.67-29,907,750.54-12,856,068.04

Finding the Fourth Proportional to 21,671,397.67, 29,907,750.54 and 12,856,068.04

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Solution

The fourth proportional to 21,671,397.67, 29,907,750.54 and 12,856,068.04 is: 17,742,098.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,671,397.67 : 29,907,750.54 = 12,856,068.04 : x
  2. Step 2: Convert to fraction form
    21,671,397.67/29,907,750.54 = 12,856,068.04/x
  3. Step 3: Cross multiply
    21,671,397.67x = 29,907,750.54 × 12,856,068.04
  4. Step 4: Simplify right side
    21,671,397.67x = 384,496,075,865,586.69
  5. Step 5: Solve for x
    x = 384,496,075,865,586.69/21,671,397.67
  6. Step 6: Final answer
    x = 17,742,098.67

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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.