Home / 31,115,580.72-42,938,376-17,176,636.67

Finding the Fourth Proportional to 31,115,580.72, 42,938,376 and 17,176,636.67

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Solution

The fourth proportional to 31,115,580.72, 42,938,376 and 17,176,636.67 is: 23,703,137.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,115,580.72 : 42,938,376 = 17,176,636.67 : x
  2. Step 2: Convert to fraction form
    31,115,580.72/42,938,376 = 17,176,636.67/x
  3. Step 3: Cross multiply
    31,115,580.72x = 42,938,376 × 17,176,636.67
  4. Step 4: Simplify right side
    31,115,580.72x = 737,536,883,537,156
  5. Step 5: Solve for x
    x = 737,536,883,537,156/31,115,580.72
  6. Step 6: Final answer
    x = 23,703,137.35

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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.