Home / 77,668,630.23-107,184,982.08-42,388,698.16

Finding the Fourth Proportional to 77,668,630.23, 107,184,982.08 and 42,388,698.16

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Solution

The fourth proportional to 77,668,630.23, 107,184,982.08 and 42,388,698.16 is: 58,497,643.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,668,630.23 : 107,184,982.08 = 42,388,698.16 : x
  2. Step 2: Convert to fraction form
    77,668,630.23/107,184,982.08 = 42,388,698.16/x
  3. Step 3: Cross multiply
    77,668,630.23x = 107,184,982.08 × 42,388,698.16
  4. Step 4: Simplify right side
    77,668,630.23x = 4,543,431,852,674,129
  5. Step 5: Solve for x
    x = 4,543,431,852,674,129/77,668,630.23
  6. Step 6: Final answer
    x = 58,497,643.63

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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.