Home / 472,392,947.10-708,589,420.65-265,768,686.30

Finding the Fourth Proportional to 472,392,947.10, 708,589,420.65 and 265,768,686.30

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Solution

The fourth proportional to 472,392,947.10, 708,589,420.65 and 265,768,686.30 is: 398,653,029.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,392,947.10 : 708,589,420.65 = 265,768,686.30 : x
  2. Step 2: Convert to fraction form
    472,392,947.10/708,589,420.65 = 265,768,686.30/x
  3. Step 3: Cross multiply
    472,392,947.10x = 708,589,420.65 × 265,768,686.30
  4. Step 4: Simplify right side
    472,392,947.10x = 188,320,879,452,228,608
  5. Step 5: Solve for x
    x = 188,320,879,452,228,608/472,392,947.10
  6. Step 6: Final answer
    x = 398,653,029.45

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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.