Home / 78,017,668.70-107,663,063.33-43,209,611.80

Finding the Fourth Proportional to 78,017,668.70, 107,663,063.33 and 43,209,611.80

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Solution

The fourth proportional to 78,017,668.70, 107,663,063.33 and 43,209,611.80 is: 59,628,533.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,017,668.70 : 107,663,063.33 = 43,209,611.80 : x
  2. Step 2: Convert to fraction form
    78,017,668.70/107,663,063.33 = 43,209,611.80/x
  3. Step 3: Cross multiply
    78,017,668.70x = 107,663,063.33 × 43,209,611.80
  4. Step 4: Simplify right side
    78,017,668.70x = 4,652,079,171,688,115
  5. Step 5: Solve for x
    x = 4,652,079,171,688,115/78,017,668.70
  6. Step 6: Final answer
    x = 59,628,533.50

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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.