Home / 72,725,914.70-100,363,881.74-39,688,291.82

Finding the Fourth Proportional to 72,725,914.70, 100,363,881.74 and 39,688,291.82

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Solution

The fourth proportional to 72,725,914.70, 100,363,881.74 and 39,688,291.82 is: 54,770,999.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,725,914.70 : 100,363,881.74 = 39,688,291.82 : x
  2. Step 2: Convert to fraction form
    72,725,914.70/100,363,881.74 = 39,688,291.82/x
  3. Step 3: Cross multiply
    72,725,914.70x = 100,363,881.74 × 39,688,291.82
  4. Step 4: Simplify right side
    72,725,914.70x = 3,983,271,026,737,557.50
  5. Step 5: Solve for x
    x = 3,983,271,026,737,557.50/72,725,914.70
  6. Step 6: Final answer
    x = 54,770,999.35

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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.