Home / 71,994,220.38-99,351,959.93-40,638,869.28

Finding the Fourth Proportional to 71,994,220.38, 99,351,959.93 and 40,638,869.28

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Solution

The fourth proportional to 71,994,220.38, 99,351,959.93 and 40,638,869.28 is: 56,081,603.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,994,220.38 : 99,351,959.93 = 40,638,869.28 : x
  2. Step 2: Convert to fraction form
    71,994,220.38/99,351,959.93 = 40,638,869.28/x
  3. Step 3: Cross multiply
    71,994,220.38x = 99,351,959.93 × 40,638,869.28
  4. Step 4: Simplify right side
    71,994,220.38x = 4,037,551,312,103,873.50
  5. Step 5: Solve for x
    x = 4,037,551,312,103,873.50/71,994,220.38
  6. Step 6: Final answer
    x = 56,081,603.37

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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.