Home / 839,732,846.40-1,259,599,269.60-472,400,827.20

Finding the Fourth Proportional to 839,732,846.40, 1,259,599,269.60 and 472,400,827.20

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Solution

The fourth proportional to 839,732,846.40, 1,259,599,269.60 and 472,400,827.20 is: 708,601,240.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,732,846.40 : 1,259,599,269.60 = 472,400,827.20 : x
  2. Step 2: Convert to fraction form
    839,732,846.40/1,259,599,269.60 = 472,400,827.20/x
  3. Step 3: Cross multiply
    839,732,846.40x = 1,259,599,269.60 × 472,400,827.20
  4. Step 4: Simplify right side
    839,732,846.40x = 595,035,736,899,555,712
  5. Step 5: Solve for x
    x = 595,035,736,899,555,712/839,732,846.40
  6. Step 6: Final answer
    x = 708,601,240.80

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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.