Home / 78,343,587.35-117,534,043.43-37,920,828.95

Finding the Fourth Proportional to 78,343,587.35, 117,534,043.43 and 37,920,828.95

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Solution

The fourth proportional to 78,343,587.35, 117,534,043.43 and 37,920,828.95 is: 56,890,276.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,343,587.35 : 117,534,043.43 = 37,920,828.95 : x
  2. Step 2: Convert to fraction form
    78,343,587.35/117,534,043.43 = 37,920,828.95/x
  3. Step 3: Cross multiply
    78,343,587.35x = 117,534,043.43 × 37,920,828.95
  4. Step 4: Simplify right side
    78,343,587.35x = 4,456,988,356,521,297.50
  5. Step 5: Solve for x
    x = 4,456,988,356,521,297.50/78,343,587.35
  6. Step 6: Final answer
    x = 56,890,276.63

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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.