Home / 265,215,054.96-398,026,859.18-213,526,119.15

Finding the Fourth Proportional to 265,215,054.96, 398,026,859.18 and 213,526,119.15

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Solution

The fourth proportional to 265,215,054.96, 398,026,859.18 and 213,526,119.15 is: 320,453,643.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,215,054.96 : 398,026,859.18 = 213,526,119.15 : x
  2. Step 2: Convert to fraction form
    265,215,054.96/398,026,859.18 = 213,526,119.15/x
  3. Step 3: Cross multiply
    265,215,054.96x = 398,026,859.18 × 213,526,119.15
  4. Step 4: Simplify right side
    265,215,054.96x = 84,989,130,557,101,328
  5. Step 5: Solve for x
    x = 84,989,130,557,101,328/265,215,054.96
  6. Step 6: Final answer
    x = 320,453,643.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.