Home / 103,388,365.50-142,675,945.19-56,978,619.94

Finding the Fourth Proportional to 103,388,365.50, 142,675,945.19 and 56,978,619.94

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Solution

The fourth proportional to 103,388,365.50, 142,675,945.19 and 56,978,619.94 is: 78,630,495.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,388,365.50 : 142,675,945.19 = 56,978,619.94 : x
  2. Step 2: Convert to fraction form
    103,388,365.50/142,675,945.19 = 56,978,619.94/x
  3. Step 3: Cross multiply
    103,388,365.50x = 142,675,945.19 × 56,978,619.94
  4. Step 4: Simplify right side
    103,388,365.50x = 8,129,478,455,561,281
  5. Step 5: Solve for x
    x = 8,129,478,455,561,281/103,388,365.50
  6. Step 6: Final answer
    x = 78,630,495.96

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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.