Home / 357,038,528.15-492,686,128.85-200,375,378.39

Finding the Fourth Proportional to 357,038,528.15, 492,686,128.85 and 200,375,378.39

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Solution

The fourth proportional to 357,038,528.15, 492,686,128.85 and 200,375,378.39 is: 276,502,846.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,038,528.15 : 492,686,128.85 = 200,375,378.39 : x
  2. Step 2: Convert to fraction form
    357,038,528.15/492,686,128.85 = 200,375,378.39/x
  3. Step 3: Cross multiply
    357,038,528.15x = 492,686,128.85 × 200,375,378.39
  4. Step 4: Simplify right side
    357,038,528.15x = 98,722,169,492,357,744
  5. Step 5: Solve for x
    x = 98,722,169,492,357,744/357,038,528.15
  6. Step 6: Final answer
    x = 276,502,846.92

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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.