Home / 1,317,724,378.47-1,818,493,108.47-723,008,705.13

Finding the Fourth Proportional to 1,317,724,378.47, 1,818,493,108.47 and 723,008,705.13

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Solution

The fourth proportional to 1,317,724,378.47, 1,818,493,108.47 and 723,008,705.13 is: 997,770,375.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,317,724,378.47 : 1,818,493,108.47 = 723,008,705.13 : x
  2. Step 2: Convert to fraction form
    1,317,724,378.47/1,818,493,108.47 = 723,008,705.13/x
  3. Step 3: Cross multiply
    1,317,724,378.47x = 1,818,493,108.47 × 723,008,705.13
  4. Step 4: Simplify right side
    1,317,724,378.47x = 1,314,786,347,642,723,328
  5. Step 5: Solve for x
    x = 1,314,786,347,642,723,328/1,317,724,378.47
  6. Step 6: Final answer
    x = 997,770,375.30

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Double scale
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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.