Home / 278,886,936.23-418,381,470.79-115,035,307.01

Finding the Fourth Proportional to 278,886,936.23, 418,381,470.79 and 115,035,307.01

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Solution

The fourth proportional to 278,886,936.23, 418,381,470.79 and 115,035,307.01 is: 172,574,024.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,886,936.23 : 418,381,470.79 = 115,035,307.01 : x
  2. Step 2: Convert to fraction form
    278,886,936.23/418,381,470.79 = 115,035,307.01/x
  3. Step 3: Cross multiply
    278,886,936.23x = 418,381,470.79 × 115,035,307.01
  4. Step 4: Simplify right side
    278,886,936.23x = 48,128,640,939,458,936
  5. Step 5: Solve for x
    x = 48,128,640,939,458,936/278,886,936.23
  6. Step 6: Final answer
    x = 172,574,024.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.