Home / 670,247,228.40-1,005,370,842.60-621,874,287.60

Finding the Fourth Proportional to 670,247,228.40, 1,005,370,842.60 and 621,874,287.60

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Solution

The fourth proportional to 670,247,228.40, 1,005,370,842.60 and 621,874,287.60 is: 932,811,431.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,247,228.40 : 1,005,370,842.60 = 621,874,287.60 : x
  2. Step 2: Convert to fraction form
    670,247,228.40/1,005,370,842.60 = 621,874,287.60/x
  3. Step 3: Cross multiply
    670,247,228.40x = 1,005,370,842.60 × 621,874,287.60
  4. Step 4: Simplify right side
    670,247,228.40x = 625,214,276,515,686,784
  5. Step 5: Solve for x
    x = 625,214,276,515,686,784/670,247,228.40
  6. Step 6: Final answer
    x = 932,811,431.40

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1.5x scale

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.