Home / 679,394,441.80-1,019,091,662.70-406,624,803.40

Finding the Fourth Proportional to 679,394,441.80, 1,019,091,662.70 and 406,624,803.40

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Solution

The fourth proportional to 679,394,441.80, 1,019,091,662.70 and 406,624,803.40 is: 609,937,205.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,394,441.80 : 1,019,091,662.70 = 406,624,803.40 : x
  2. Step 2: Convert to fraction form
    679,394,441.80/1,019,091,662.70 = 406,624,803.40/x
  3. Step 3: Cross multiply
    679,394,441.80x = 1,019,091,662.70 × 406,624,803.40
  4. Step 4: Simplify right side
    679,394,441.80x = 414,387,946,991,966,592
  5. Step 5: Solve for x
    x = 414,387,946,991,966,592/679,394,441.80
  6. Step 6: Final answer
    x = 609,937,205.10

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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.