Home / 78,272,071.32-117,388,705.05-26,455,522.89

Finding the Fourth Proportional to 78,272,071.32, 117,388,705.05 and 26,455,522.89

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Solution

The fourth proportional to 78,272,071.32, 117,388,705.05 and 26,455,522.89 is: 39,676,726.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,272,071.32 : 117,388,705.05 = 26,455,522.89 : x
  2. Step 2: Convert to fraction form
    78,272,071.32/117,388,705.05 = 26,455,522.89/x
  3. Step 3: Cross multiply
    78,272,071.32x = 117,388,705.05 × 26,455,522.89
  4. Step 4: Simplify right side
    78,272,071.32x = 3,105,579,573,477,733.50
  5. Step 5: Solve for x
    x = 3,105,579,573,477,733.50/78,272,071.32
  6. Step 6: Final answer
    x = 39,676,726.59

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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.