Home / 1,211,180,450.03-1,671,430,508.75-654,263,497.10

Finding the Fourth Proportional to 1,211,180,450.03, 1,671,430,508.75 and 654,263,497.10

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Solution

The fourth proportional to 1,211,180,450.03, 1,671,430,508.75 and 654,263,497.10 is: 902,884,429.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,180,450.03 : 1,671,430,508.75 = 654,263,497.10 : x
  2. Step 2: Convert to fraction form
    1,211,180,450.03/1,671,430,508.75 = 654,263,497.10/x
  3. Step 3: Cross multiply
    1,211,180,450.03x = 1,671,430,508.75 × 654,263,497.10
  4. Step 4: Simplify right side
    1,211,180,450.03x = 1,093,555,969,802,778,624
  5. Step 5: Solve for x
    x = 1,093,555,969,802,778,624/1,211,180,450.03
  6. Step 6: Final answer
    x = 902,884,429.63

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Double scale
Find fourth proportional to 1,211,180,451.03, 1,671,430,510.13 and 654,263,498.10
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.