Home / 190,678,976.78-286,021,122.46-54,364,360.28

Finding the Fourth Proportional to 190,678,976.78, 286,021,122.46 and 54,364,360.28

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Solution

The fourth proportional to 190,678,976.78, 286,021,122.46 and 54,364,360.28 is: 81,547,298.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,678,976.78 : 286,021,122.46 = 54,364,360.28 : x
  2. Step 2: Convert to fraction form
    190,678,976.78/286,021,122.46 = 54,364,360.28/x
  3. Step 3: Cross multiply
    190,678,976.78x = 286,021,122.46 × 54,364,360.28
  4. Step 4: Simplify right side
    190,678,976.78x = 15,549,355,347,539,422
  5. Step 5: Solve for x
    x = 15,549,355,347,539,422/190,678,976.78
  6. Step 6: Final answer
    x = 81,547,298.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.