Home / 76,956,649.72-115,435,721.92-61,565,704.20

Finding the Fourth Proportional to 76,956,649.72, 115,435,721.92 and 61,565,704.20

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Solution

The fourth proportional to 76,956,649.72, 115,435,721.92 and 61,565,704.20 is: 92,349,154.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,956,649.72 : 115,435,721.92 = 61,565,704.20 : x
  2. Step 2: Convert to fraction form
    76,956,649.72/115,435,721.92 = 61,565,704.20/x
  3. Step 3: Cross multiply
    76,956,649.72x = 115,435,721.92 × 61,565,704.20
  4. Step 4: Simplify right side
    76,956,649.72x = 7,106,881,509,477,284
  5. Step 5: Solve for x
    x = 7,106,881,509,477,284/76,956,649.72
  6. Step 6: Final answer
    x = 92,349,154.17

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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.