Home / 100,252,971-138,349,099.98-56,792,907

Finding the Fourth Proportional to 100,252,971, 138,349,099.98 and 56,792,907

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Solution

The fourth proportional to 100,252,971, 138,349,099.98 and 56,792,907 is: 78,374,211.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,252,971 : 138,349,099.98 = 56,792,907 : x
  2. Step 2: Convert to fraction form
    100,252,971/138,349,099.98 = 56,792,907/x
  3. Step 3: Cross multiply
    100,252,971x = 138,349,099.98 × 56,792,907
  4. Step 4: Simplify right side
    100,252,971x = 7,857,247,568,697,841
  5. Step 5: Solve for x
    x = 7,857,247,568,697,841/100,252,971
  6. Step 6: Final answer
    x = 78,374,211.66

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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.