Home / 521,236,085.95-719,319,845.43-306,669,708.13

Finding the Fourth Proportional to 521,236,085.95, 719,319,845.43 and 306,669,708.13

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Solution

The fourth proportional to 521,236,085.95, 719,319,845.43 and 306,669,708.13 is: 423,212,461.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,236,085.95 : 719,319,845.43 = 306,669,708.13 : x
  2. Step 2: Convert to fraction form
    521,236,085.95/719,319,845.43 = 306,669,708.13/x
  3. Step 3: Cross multiply
    521,236,085.95x = 719,319,845.43 × 306,669,708.13
  4. Step 4: Simplify right side
    521,236,085.95x = 220,593,607,050,134,784
  5. Step 5: Solve for x
    x = 220,593,607,050,134,784/521,236,085.95
  6. Step 6: Final answer
    x = 423,212,461.68

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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.