Home / 100,788,680.50-139,014,114.21-76,009,910.38

Finding the Fourth Proportional to 100,788,680.50, 139,014,114.21 and 76,009,910.38

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Solution

The fourth proportional to 100,788,680.50, 139,014,114.21 and 76,009,910.38 is: 104,837,669.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,788,680.50 : 139,014,114.21 = 76,009,910.38 : x
  2. Step 2: Convert to fraction form
    100,788,680.50/139,014,114.21 = 76,009,910.38/x
  3. Step 3: Cross multiply
    100,788,680.50x = 139,014,114.21 × 76,009,910.38
  4. Step 4: Simplify right side
    100,788,680.50x = 10,566,450,362,657,184
  5. Step 5: Solve for x
    x = 10,566,450,362,657,184/100,788,680.50
  6. Step 6: Final answer
    x = 104,837,669.37

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1.5x scale

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.