Home / 734,489,643.60-1,101,734,465.40-638,830,263.60

Finding the Fourth Proportional to 734,489,643.60, 1,101,734,465.40 and 638,830,263.60

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Solution

The fourth proportional to 734,489,643.60, 1,101,734,465.40 and 638,830,263.60 is: 958,245,395.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    734,489,643.60 : 1,101,734,465.40 = 638,830,263.60 : x
  2. Step 2: Convert to fraction form
    734,489,643.60/1,101,734,465.40 = 638,830,263.60/x
  3. Step 3: Cross multiply
    734,489,643.60x = 1,101,734,465.40 × 638,830,263.60
  4. Step 4: Simplify right side
    734,489,643.60x = 703,821,318,948,687,104
  5. Step 5: Solve for x
    x = 703,821,318,948,687,104/734,489,643.60
  6. Step 6: Final answer
    x = 958,245,395.40

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Double scale
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Similar ratio
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1.5x scale

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.