Home / 81,470,510-112,401,788.64-46,184,531.84

Finding the Fourth Proportional to 81,470,510, 112,401,788.64 and 46,184,531.84

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Solution

The fourth proportional to 81,470,510, 112,401,788.64 and 46,184,531.84 is: 63,719,055.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,470,510 : 112,401,788.64 = 46,184,531.84 : x
  2. Step 2: Convert to fraction form
    81,470,510/112,401,788.64 = 46,184,531.84/x
  3. Step 3: Cross multiply
    81,470,510x = 112,401,788.64 × 46,184,531.84
  4. Step 4: Simplify right side
    81,470,510x = 5,191,223,986,317,031
  5. Step 5: Solve for x
    x = 5,191,223,986,317,031/81,470,510
  6. Step 6: Final answer
    x = 63,719,055.97

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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.