Home / 426,050,017.20-639,075,025.80-242,384,007.60

Finding the Fourth Proportional to 426,050,017.20, 639,075,025.80 and 242,384,007.60

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Solution

The fourth proportional to 426,050,017.20, 639,075,025.80 and 242,384,007.60 is: 363,576,011.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,050,017.20 : 639,075,025.80 = 242,384,007.60 : x
  2. Step 2: Convert to fraction form
    426,050,017.20/639,075,025.80 = 242,384,007.60/x
  3. Step 3: Cross multiply
    426,050,017.20x = 639,075,025.80 × 242,384,007.60
  4. Step 4: Simplify right side
    426,050,017.20x = 154,901,565,910,477,376
  5. Step 5: Solve for x
    x = 154,901,565,910,477,376/426,050,017.20
  6. Step 6: Final answer
    x = 363,576,011.40

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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.