Home / 935,085,025.12-1,290,418,846.32-517,414,914.40

Finding the Fourth Proportional to 935,085,025.12, 1,290,418,846.32 and 517,414,914.40

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Solution

The fourth proportional to 935,085,025.12, 1,290,418,846.32 and 517,414,914.40 is: 714,033,418.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    935,085,025.12 : 1,290,418,846.32 = 517,414,914.40 : x
  2. Step 2: Convert to fraction form
    935,085,025.12/1,290,418,846.32 = 517,414,914.40/x
  3. Step 3: Cross multiply
    935,085,025.12x = 1,290,418,846.32 × 517,414,914.40
  4. Step 4: Simplify right side
    935,085,025.12x = 667,681,956,908,809,472
  5. Step 5: Solve for x
    x = 667,681,956,908,809,472/935,085,025.12
  6. Step 6: Final answer
    x = 714,033,418.32

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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.