Home / 28,411,746.42-39,218,872.44-18,622,821.45

Finding the Fourth Proportional to 28,411,746.42, 39,218,872.44 and 18,622,821.45

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Solution

The fourth proportional to 28,411,746.42, 39,218,872.44 and 18,622,821.45 is: 25,706,482.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,411,746.42 : 39,218,872.44 = 18,622,821.45 : x
  2. Step 2: Convert to fraction form
    28,411,746.42/39,218,872.44 = 18,622,821.45/x
  3. Step 3: Cross multiply
    28,411,746.42x = 39,218,872.44 × 18,622,821.45
  4. Step 4: Simplify right side
    28,411,746.42x = 730,366,058,920,445.75
  5. Step 5: Solve for x
    x = 730,366,058,920,445.75/28,411,746.42
  6. Step 6: Final answer
    x = 25,706,482.39

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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.