Home / 1,054,358,411.68-1,581,520,012.98-256,683,959.74

Finding the Fourth Proportional to 1,054,358,411.68, 1,581,520,012.98 and 256,683,959.74

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Solution

The fourth proportional to 1,054,358,411.68, 1,581,520,012.98 and 256,683,959.74 is: 385,021,653.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,054,358,411.68 : 1,581,520,012.98 = 256,683,959.74 : x
  2. Step 2: Convert to fraction form
    1,054,358,411.68/1,581,520,012.98 = 256,683,959.74/x
  3. Step 3: Cross multiply
    1,054,358,411.68x = 1,581,520,012.98 × 256,683,959.74
  4. Step 4: Simplify right side
    1,054,358,411.68x = 405,950,819,339,762,624
  5. Step 5: Solve for x
    x = 405,950,819,339,762,624/1,054,358,411.68
  6. Step 6: Final answer
    x = 385,021,653.78

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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.