Home / 521,526,581.82-719,746,713.52-298,578,192.12

Finding the Fourth Proportional to 521,526,581.82, 719,746,713.52 and 298,578,192.12

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Solution

The fourth proportional to 521,526,581.82, 719,746,713.52 and 298,578,192.12 is: 412,060,822.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,526,581.82 : 719,746,713.52 = 298,578,192.12 : x
  2. Step 2: Convert to fraction form
    521,526,581.82/719,746,713.52 = 298,578,192.12/x
  3. Step 3: Cross multiply
    521,526,581.82x = 719,746,713.52 × 298,578,192.12
  4. Step 4: Simplify right side
    521,526,581.82x = 214,900,672,507,113,152
  5. Step 5: Solve for x
    x = 214,900,672,507,113,152/521,526,581.82
  6. Step 6: Final answer
    x = 412,060,822.97

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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.