Home / 472,383,139.20-708,574,708.80-397,136,342.40

Finding the Fourth Proportional to 472,383,139.20, 708,574,708.80 and 397,136,342.40

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Solution

The fourth proportional to 472,383,139.20, 708,574,708.80 and 397,136,342.40 is: 595,704,513.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,383,139.20 : 708,574,708.80 = 397,136,342.40 : x
  2. Step 2: Convert to fraction form
    472,383,139.20/708,574,708.80 = 397,136,342.40/x
  3. Step 3: Cross multiply
    472,383,139.20x = 708,574,708.80 × 397,136,342.40
  4. Step 4: Simplify right side
    472,383,139.20x = 281,400,768,169,977,056
  5. Step 5: Solve for x
    x = 281,400,768,169,977,056/472,383,139.20
  6. Step 6: Final answer
    x = 595,704,513.60

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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.