Home / 100,707,361,045.66-139,038,889,782.92-64,106,135,719.68

Finding the Fourth Proportional to 100,707,361,045.66, 139,038,889,782.92 and 64,106,135,719.68

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Solution

The fourth proportional to 100,707,361,045.66, 139,038,889,782.92 and 64,106,135,719.68 is: 88,506,399,593.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,707,361,045.66 : 139,038,889,782.92 = 64,106,135,719.68 : x
  2. Step 2: Convert to fraction form
    100,707,361,045.66/139,038,889,782.92 = 64,106,135,719.68/x
  3. Step 3: Cross multiply
    100,707,361,045.66x = 139,038,889,782.92 × 64,106,135,719.68
  4. Step 4: Simplify right side
    100,707,361,045.66x = 8,913,245,938,736,804,397,056
  5. Step 5: Solve for x
    x = 8,913,245,938,736,804,397,056/100,707,361,045.66
  6. Step 6: Final answer
    x = 88,506,399,593.73

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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.