Home / 100,081,516-138,111,558.96-56,621,452

Finding the Fourth Proportional to 100,081,516, 138,111,558.96 and 56,621,452

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Solution

The fourth proportional to 100,081,516, 138,111,558.96 and 56,621,452 is: 78,137,075.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,081,516 : 138,111,558.96 = 56,621,452 : x
  2. Step 2: Convert to fraction form
    100,081,516/138,111,558.96 = 56,621,452/x
  3. Step 3: Cross multiply
    100,081,516x = 138,111,558.96 × 56,621,452
  4. Step 4: Simplify right side
    100,081,516x = 7,820,077,006,298,810
  5. Step 5: Solve for x
    x = 7,820,077,006,298,810/100,081,516
  6. Step 6: Final answer
    x = 78,137,075.84

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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.