Home / 398,647,216.80-597,545,672.40-152,908,898.40

Finding the Fourth Proportional to 398,647,216.80, 597,545,672.40 and 152,908,898.40

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Solution

The fourth proportional to 398,647,216.80, 597,545,672.40 and 152,908,898.40 is: 229,200,271.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,647,216.80 : 597,545,672.40 = 152,908,898.40 : x
  2. Step 2: Convert to fraction form
    398,647,216.80/597,545,672.40 = 152,908,898.40/x
  3. Step 3: Cross multiply
    398,647,216.80x = 597,545,672.40 × 152,908,898.40
  4. Step 4: Simplify right side
    398,647,216.80x = 91,370,050,510,371,280
  5. Step 5: Solve for x
    x = 91,370,050,510,371,280/398,647,216.80
  6. Step 6: Final answer
    x = 229,200,271.97

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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.