Home / 1,405,947,412.35-2,108,921,118.53-1,178,065,511.55

Finding the Fourth Proportional to 1,405,947,412.35, 2,108,921,118.53 and 1,178,065,511.55

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Solution

The fourth proportional to 1,405,947,412.35, 2,108,921,118.53 and 1,178,065,511.55 is: 1,767,098,267.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,947,412.35 : 2,108,921,118.53 = 1,178,065,511.55 : x
  2. Step 2: Convert to fraction form
    1,405,947,412.35/2,108,921,118.53 = 1,178,065,511.55/x
  3. Step 3: Cross multiply
    1,405,947,412.35x = 2,108,921,118.53 × 1,178,065,511.55
  4. Step 4: Simplify right side
    1,405,947,412.35x = 2,484,447,236,313,752,064
  5. Step 5: Solve for x
    x = 2,484,447,236,313,752,064/1,405,947,412.35
  6. Step 6: Final answer
    x = 1,767,098,267.33

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Double scale
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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.