Home / 1,283,978,366.78-1,925,360,420.03-497,400,431.37

Finding the Fourth Proportional to 1,283,978,366.78, 1,925,360,420.03 and 497,400,431.37

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Solution

The fourth proportional to 1,283,978,366.78, 1,925,360,420.03 and 497,400,431.37 is: 745,865,450.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,283,978,366.78 : 1,925,360,420.03 = 497,400,431.37 : x
  2. Step 2: Convert to fraction form
    1,283,978,366.78/1,925,360,420.03 = 497,400,431.37/x
  3. Step 3: Cross multiply
    1,283,978,366.78x = 1,925,360,420.03 × 497,400,431.37
  4. Step 4: Simplify right side
    1,283,978,366.78x = 957,675,103,457,779,712
  5. Step 5: Solve for x
    x = 957,675,103,457,779,712/1,283,978,366.78
  6. Step 6: Final answer
    x = 745,865,450.88

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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.