Home / 78,059,473.29-107,722,199.75-42,771,670.93

Finding the Fourth Proportional to 78,059,473.29, 107,722,199.75 and 42,771,670.93

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Solution

The fourth proportional to 78,059,473.29, 107,722,199.75 and 42,771,670.93 is: 59,024,975.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,059,473.29 : 107,722,199.75 = 42,771,670.93 : x
  2. Step 2: Convert to fraction form
    78,059,473.29/107,722,199.75 = 42,771,670.93/x
  3. Step 3: Cross multiply
    78,059,473.29x = 107,722,199.75 × 42,771,670.93
  4. Step 4: Simplify right side
    78,059,473.29x = 4,607,458,479,483,739
  5. Step 5: Solve for x
    x = 4,607,458,479,483,739/78,059,473.29
  6. Step 6: Final answer
    x = 59,024,975.26

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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.