Home / 426,384,000.40-639,576,000.60-357,509,246.80

Finding the Fourth Proportional to 426,384,000.40, 639,576,000.60 and 357,509,246.80

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Solution

The fourth proportional to 426,384,000.40, 639,576,000.60 and 357,509,246.80 is: 536,263,870.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,384,000.40 : 639,576,000.60 = 357,509,246.80 : x
  2. Step 2: Convert to fraction form
    426,384,000.40/639,576,000.60 = 357,509,246.80/x
  3. Step 3: Cross multiply
    426,384,000.40x = 639,576,000.60 × 357,509,246.80
  4. Step 4: Simplify right side
    426,384,000.40x = 228,654,334,245,862,368
  5. Step 5: Solve for x
    x = 228,654,334,245,862,368/426,384,000.40
  6. Step 6: Final answer
    x = 536,263,870.20

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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.