Home / 78,097,401.44-107,772,081.03-42,814,000.65

Finding the Fourth Proportional to 78,097,401.44, 107,772,081.03 and 42,814,000.65

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Solution

The fourth proportional to 78,097,401.44, 107,772,081.03 and 42,814,000.65 is: 59,082,041.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,097,401.44 : 107,772,081.03 = 42,814,000.65 : x
  2. Step 2: Convert to fraction form
    78,097,401.44/107,772,081.03 = 42,814,000.65/x
  3. Step 3: Cross multiply
    78,097,401.44x = 107,772,081.03 × 42,814,000.65
  4. Step 4: Simplify right side
    78,097,401.44x = 4,614,153,947,270,273
  5. Step 5: Solve for x
    x = 4,614,153,947,270,273/78,097,401.44
  6. Step 6: Final answer
    x = 59,082,041.94

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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.