Home / 19,853,783.65-29,689,249.15-18,885,231.82

Finding the Fourth Proportional to 19,853,783.65, 29,689,249.15 and 18,885,231.82

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Solution

The fourth proportional to 19,853,783.65, 29,689,249.15 and 18,885,231.82 is: 28,240,881.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,853,783.65 : 29,689,249.15 = 18,885,231.82 : x
  2. Step 2: Convert to fraction form
    19,853,783.65/29,689,249.15 = 18,885,231.82/x
  3. Step 3: Cross multiply
    19,853,783.65x = 29,689,249.15 × 18,885,231.82
  4. Step 4: Simplify right side
    19,853,783.65x = 560,688,352,563,828.69
  5. Step 5: Solve for x
    x = 560,688,352,563,828.69/19,853,783.65
  6. Step 6: Final answer
    x = 28,240,881.57

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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.