Home / 77,679,185.88-107,197,503.84-42,397,316.04

Finding the Fourth Proportional to 77,679,185.88, 107,197,503.84 and 42,397,316.04

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Solution

The fourth proportional to 77,679,185.88, 107,197,503.84 and 42,397,316.04 is: 58,508,420.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,679,185.88 : 107,197,503.84 = 42,397,316.04 : x
  2. Step 2: Convert to fraction form
    77,679,185.88/107,197,503.84 = 42,397,316.04/x
  3. Step 3: Cross multiply
    77,679,185.88x = 107,197,503.84 × 42,397,316.04
  4. Step 4: Simplify right side
    77,679,185.88x = 4,544,886,449,003,594
  5. Step 5: Solve for x
    x = 4,544,886,449,003,594/77,679,185.88
  6. Step 6: Final answer
    x = 58,508,420.21

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Double scale
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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.