Home / 787,973,999.70-1,181,960,999.55-529,984,982.10

Finding the Fourth Proportional to 787,973,999.70, 1,181,960,999.55 and 529,984,982.10

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Solution

The fourth proportional to 787,973,999.70, 1,181,960,999.55 and 529,984,982.10 is: 794,977,473.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,973,999.70 : 1,181,960,999.55 = 529,984,982.10 : x
  2. Step 2: Convert to fraction form
    787,973,999.70/1,181,960,999.55 = 529,984,982.10/x
  3. Step 3: Cross multiply
    787,973,999.70x = 1,181,960,999.55 × 529,984,982.10
  4. Step 4: Simplify right side
    787,973,999.70x = 626,421,579,189,404,800
  5. Step 5: Solve for x
    x = 626,421,579,189,404,800/787,973,999.70
  6. Step 6: Final answer
    x = 794,977,473.15

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1.5x scale

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.