Home / 278,014,687.35-417,046,538.16-103,139,747.07

Finding the Fourth Proportional to 278,014,687.35, 417,046,538.16 and 103,139,747.07

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Solution

The fourth proportional to 278,014,687.35, 417,046,538.16 and 103,139,747.07 is: 154,718,712.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,014,687.35 : 417,046,538.16 = 103,139,747.07 : x
  2. Step 2: Convert to fraction form
    278,014,687.35/417,046,538.16 = 103,139,747.07/x
  3. Step 3: Cross multiply
    278,014,687.35x = 417,046,538.16 × 103,139,747.07
  4. Step 4: Simplify right side
    278,014,687.35x = 43,014,074,462,241,504
  5. Step 5: Solve for x
    x = 43,014,074,462,241,504/278,014,687.35
  6. Step 6: Final answer
    x = 154,718,712.43

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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.