Home / 715,669,994.70-1,072,875,136.05-484,890,756.30

Finding the Fourth Proportional to 715,669,994.70, 1,072,875,136.05 and 484,890,756.30

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Solution

The fourth proportional to 715,669,994.70, 1,072,875,136.05 and 484,890,756.30 is: 726,909,385.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,669,994.70 : 1,072,875,136.05 = 484,890,756.30 : x
  2. Step 2: Convert to fraction form
    715,669,994.70/1,072,875,136.05 = 484,890,756.30/x
  3. Step 3: Cross multiply
    715,669,994.70x = 1,072,875,136.05 × 484,890,756.30
  4. Step 4: Simplify right side
    715,669,994.70x = 520,227,236,134,749,888
  5. Step 5: Solve for x
    x = 520,227,236,134,749,888/715,669,994.70
  6. Step 6: Final answer
    x = 726,909,385.59

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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.