Home / 315,113,828.40-472,670,742.60-200,606,007.60

Finding the Fourth Proportional to 315,113,828.40, 472,670,742.60 and 200,606,007.60

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Solution

The fourth proportional to 315,113,828.40, 472,670,742.60 and 200,606,007.60 is: 300,909,011.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,113,828.40 : 472,670,742.60 = 200,606,007.60 : x
  2. Step 2: Convert to fraction form
    315,113,828.40/472,670,742.60 = 200,606,007.60/x
  3. Step 3: Cross multiply
    315,113,828.40x = 472,670,742.60 × 200,606,007.60
  4. Step 4: Simplify right side
    315,113,828.40x = 94,820,590,582,313,248
  5. Step 5: Solve for x
    x = 94,820,590,582,313,248/315,113,828.40
  6. Step 6: Final answer
    x = 300,909,011.40

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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.