Home / 472,393,047.20-708,589,570.80-440,108,006.45

Finding the Fourth Proportional to 472,393,047.20, 708,589,570.80 and 440,108,006.45

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Solution

The fourth proportional to 472,393,047.20, 708,589,570.80 and 440,108,006.45 is: 660,162,009.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,393,047.20 : 708,589,570.80 = 440,108,006.45 : x
  2. Step 2: Convert to fraction form
    472,393,047.20/708,589,570.80 = 440,108,006.45/x
  3. Step 3: Cross multiply
    472,393,047.20x = 708,589,570.80 × 440,108,006.45
  4. Step 4: Simplify right side
    472,393,047.20x = 311,855,943,396,049,088
  5. Step 5: Solve for x
    x = 311,855,943,396,049,088/472,393,047.20
  6. Step 6: Final answer
    x = 660,162,009.68

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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.