Home / 65,448,465.69-90,319,156.16-36,079,153.86

Finding the Fourth Proportional to 65,448,465.69, 90,319,156.16 and 36,079,153.86

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Solution

The fourth proportional to 65,448,465.69, 90,319,156.16 and 36,079,153.86 is: 49,789,383.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,448,465.69 : 90,319,156.16 = 36,079,153.86 : x
  2. Step 2: Convert to fraction form
    65,448,465.69/90,319,156.16 = 36,079,153.86/x
  3. Step 3: Cross multiply
    65,448,465.69x = 90,319,156.16 × 36,079,153.86
  4. Step 4: Simplify right side
    65,448,465.69x = 3,258,638,731,421,611
  5. Step 5: Solve for x
    x = 3,258,638,731,421,611/65,448,465.69
  6. Step 6: Final answer
    x = 49,789,383.10

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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.