Home / 501,118,364.31-691,559,068.91-289,421,262.24

Finding the Fourth Proportional to 501,118,364.31, 691,559,068.91 and 289,421,262.24

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Solution

The fourth proportional to 501,118,364.31, 691,559,068.91 and 289,421,262.24 is: 399,410,424.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,118,364.31 : 691,559,068.91 = 289,421,262.24 : x
  2. Step 2: Convert to fraction form
    501,118,364.31/691,559,068.91 = 289,421,262.24/x
  3. Step 3: Cross multiply
    501,118,364.31x = 691,559,068.91 × 289,421,262.24
  4. Step 4: Simplify right side
    501,118,364.31x = 200,151,898,638,597,568
  5. Step 5: Solve for x
    x = 200,151,898,638,597,568/501,118,364.31
  6. Step 6: Final answer
    x = 399,410,424.55

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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.