Home / 82,707,478.70-124,087,790.10-55,444,555.40

Finding the Fourth Proportional to 82,707,478.70, 124,087,790.10 and 55,444,555.40

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Solution

The fourth proportional to 82,707,478.70, 124,087,790.10 and 55,444,555.40 is: 83,184,646.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,707,478.70 : 124,087,790.10 = 55,444,555.40 : x
  2. Step 2: Convert to fraction form
    82,707,478.70/124,087,790.10 = 55,444,555.40/x
  3. Step 3: Cross multiply
    82,707,478.70x = 124,087,790.10 × 55,444,555.40
  4. Step 4: Simplify right side
    82,707,478.70x = 6,879,992,352,663,021
  5. Step 5: Solve for x
    x = 6,879,992,352,663,021/82,707,478.70
  6. Step 6: Final answer
    x = 83,184,646.19

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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.