Home / 1,007,701,907.60-1,511,552,861.40-426,092,877.20

Finding the Fourth Proportional to 1,007,701,907.60, 1,511,552,861.40 and 426,092,877.20

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Solution

The fourth proportional to 1,007,701,907.60, 1,511,552,861.40 and 426,092,877.20 is: 639,139,315.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,007,701,907.60 : 1,511,552,861.40 = 426,092,877.20 : x
  2. Step 2: Convert to fraction form
    1,007,701,907.60/1,511,552,861.40 = 426,092,877.20/x
  3. Step 3: Cross multiply
    1,007,701,907.60x = 1,511,552,861.40 × 426,092,877.20
  4. Step 4: Simplify right side
    1,007,701,907.60x = 644,061,907,753,818,880
  5. Step 5: Solve for x
    x = 644,061,907,753,818,880/1,007,701,907.60
  6. Step 6: Final answer
    x = 639,139,315.80

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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.