Home / 221,087,085.80-305,045,328.51-145,725,061.64

Finding the Fourth Proportional to 221,087,085.80, 305,045,328.51 and 145,725,061.64

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Solution

The fourth proportional to 221,087,085.80, 305,045,328.51 and 145,725,061.64 is: 201,064,431.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,087,085.80 : 305,045,328.51 = 145,725,061.64 : x
  2. Step 2: Convert to fraction form
    221,087,085.80/305,045,328.51 = 145,725,061.64/x
  3. Step 3: Cross multiply
    221,087,085.80x = 305,045,328.51 × 145,725,061.64
  4. Step 4: Simplify right side
    221,087,085.80x = 44,452,749,298,588,568
  5. Step 5: Solve for x
    x = 44,452,749,298,588,568/221,087,085.80
  6. Step 6: Final answer
    x = 201,064,431.87

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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.