Home / 72,725,923.56-100,363,894.00-39,688,300.64

Finding the Fourth Proportional to 72,725,923.56, 100,363,894.00 and 39,688,300.64

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Solution

The fourth proportional to 72,725,923.56, 100,363,894.00 and 39,688,300.64 is: 54,771,011.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,725,923.56 : 100,363,894.00 = 39,688,300.64 : x
  2. Step 2: Convert to fraction form
    72,725,923.56/100,363,894.00 = 39,688,300.64/x
  3. Step 3: Cross multiply
    72,725,923.56x = 100,363,894.00 × 39,688,300.64
  4. Step 4: Simplify right side
    72,725,923.56x = 3,983,272,398,283,579
  5. Step 5: Solve for x
    x = 3,983,272,398,283,579/72,725,923.56
  6. Step 6: Final answer
    x = 54,771,011.54

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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.