Home / 78,824,993.40-108,829,675.44-70,550,726.76

Finding the Fourth Proportional to 78,824,993.40, 108,829,675.44 and 70,550,726.76

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Solution

The fourth proportional to 78,824,993.40, 108,829,675.44 and 70,550,726.76 is: 97,405,814.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,824,993.40 : 108,829,675.44 = 70,550,726.76 : x
  2. Step 2: Convert to fraction form
    78,824,993.40/108,829,675.44 = 70,550,726.76/x
  3. Step 3: Cross multiply
    78,824,993.40x = 108,829,675.44 × 70,550,726.76
  4. Step 4: Simplify right side
    78,824,993.40x = 7,678,012,695,346,923
  5. Step 5: Solve for x
    x = 7,678,012,695,346,923/78,824,993.40
  6. Step 6: Final answer
    x = 97,405,814.63

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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.