Home / 768,740,618.10-1,153,110,927.15-639,494,166.90

Finding the Fourth Proportional to 768,740,618.10, 1,153,110,927.15 and 639,494,166.90

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Solution

The fourth proportional to 768,740,618.10, 1,153,110,927.15 and 639,494,166.90 is: 959,241,250.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,740,618.10 : 1,153,110,927.15 = 639,494,166.90 : x
  2. Step 2: Convert to fraction form
    768,740,618.10/1,153,110,927.15 = 639,494,166.90/x
  3. Step 3: Cross multiply
    768,740,618.10x = 1,153,110,927.15 × 639,494,166.90
  4. Step 4: Simplify right side
    768,740,618.10x = 737,407,711,701,075,840
  5. Step 5: Solve for x
    x = 737,407,711,701,075,840/768,740,618.10
  6. Step 6: Final answer
    x = 959,241,250.35

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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.