Home / 521,236,084.95-719,319,844.05-306,669,707.13

Finding the Fourth Proportional to 521,236,084.95, 719,319,844.05 and 306,669,707.13

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Solution

The fourth proportional to 521,236,084.95, 719,319,844.05 and 306,669,707.13 is: 423,212,460.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,236,084.95 : 719,319,844.05 = 306,669,707.13 : x
  2. Step 2: Convert to fraction form
    521,236,084.95/719,319,844.05 = 306,669,707.13/x
  3. Step 3: Cross multiply
    521,236,084.95x = 719,319,844.05 × 306,669,707.13
  4. Step 4: Simplify right side
    521,236,084.95x = 220,593,605,907,610,752
  5. Step 5: Solve for x
    x = 220,593,605,907,610,752/521,236,084.95
  6. Step 6: Final answer
    x = 423,212,460.30

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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.