Home / 387,088,710.40-580,633,065.60-347,673,721.60

Finding the Fourth Proportional to 387,088,710.40, 580,633,065.60 and 347,673,721.60

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Solution

The fourth proportional to 387,088,710.40, 580,633,065.60 and 347,673,721.60 is: 521,510,582.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,088,710.40 : 580,633,065.60 = 347,673,721.60 : x
  2. Step 2: Convert to fraction form
    387,088,710.40/580,633,065.60 = 347,673,721.60/x
  3. Step 3: Cross multiply
    387,088,710.40x = 580,633,065.60 × 347,673,721.60
  4. Step 4: Simplify right side
    387,088,710.40x = 201,870,858,801,168,960
  5. Step 5: Solve for x
    x = 201,870,858,801,168,960/387,088,710.40
  6. Step 6: Final answer
    x = 521,510,582.40

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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.