Home / 216,537,669.36-298,794,364.92-123,724,188.72

Finding the Fourth Proportional to 216,537,669.36, 298,794,364.92 and 123,724,188.72

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Solution

The fourth proportional to 216,537,669.36, 298,794,364.92 and 123,724,188.72 is: 170,723,599.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,537,669.36 : 298,794,364.92 = 123,724,188.72 : x
  2. Step 2: Convert to fraction form
    216,537,669.36/298,794,364.92 = 123,724,188.72/x
  3. Step 3: Cross multiply
    216,537,669.36x = 298,794,364.92 × 123,724,188.72
  4. Step 4: Simplify right side
    216,537,669.36x = 36,968,090,393,834,632
  5. Step 5: Solve for x
    x = 36,968,090,393,834,632/216,537,669.36
  6. Step 6: Final answer
    x = 170,723,599.75

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1.5x scale

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.