Home / 148,492,649.04-204,193,015.72-128,879,381.53

Finding the Fourth Proportional to 148,492,649.04, 204,193,015.72 and 128,879,381.53

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Solution

The fourth proportional to 148,492,649.04, 204,193,015.72 and 128,879,381.53 is: 177,222,709.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,492,649.04 : 204,193,015.72 = 128,879,381.53 : x
  2. Step 2: Convert to fraction form
    148,492,649.04/204,193,015.72 = 128,879,381.53/x
  3. Step 3: Cross multiply
    148,492,649.04x = 204,193,015.72 × 128,879,381.53
  4. Step 4: Simplify right side
    148,492,649.04x = 26,316,269,578,739,168
  5. Step 5: Solve for x
    x = 26,316,269,578,739,168/148,492,649.04
  6. Step 6: Final answer
    x = 177,222,709.33

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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.