Home / 426,050,005.20-639,075,007.80-242,383,995.60

Finding the Fourth Proportional to 426,050,005.20, 639,075,007.80 and 242,383,995.60

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Solution

The fourth proportional to 426,050,005.20, 639,075,007.80 and 242,383,995.60 is: 363,575,993.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,050,005.20 : 639,075,007.80 = 242,383,995.60 : x
  2. Step 2: Convert to fraction form
    426,050,005.20/639,075,007.80 = 242,383,995.60/x
  3. Step 3: Cross multiply
    426,050,005.20x = 639,075,007.80 × 242,383,995.60
  4. Step 4: Simplify right side
    426,050,005.20x = 154,901,553,878,665,152
  5. Step 5: Solve for x
    x = 154,901,553,878,665,152/426,050,005.20
  6. Step 6: Final answer
    x = 363,575,993.40

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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.