Home / 1,421,241,984.74-1,961,162,944.20-786,061,541.88

Finding the Fourth Proportional to 1,421,241,984.74, 1,961,162,944.20 and 786,061,541.88

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Solution

The fourth proportional to 1,421,241,984.74, 1,961,162,944.20 and 786,061,541.88 is: 1,084,681,415.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,241,984.74 : 1,961,162,944.20 = 786,061,541.88 : x
  2. Step 2: Convert to fraction form
    1,421,241,984.74/1,961,162,944.20 = 786,061,541.88/x
  3. Step 3: Cross multiply
    1,421,241,984.74x = 1,961,162,944.20 × 786,061,541.88
  4. Step 4: Simplify right side
    1,421,241,984.74x = 1,541,594,767,795,772,416
  5. Step 5: Solve for x
    x = 1,541,594,767,795,772,416/1,421,241,984.74
  6. Step 6: Final answer
    x = 1,084,681,415.51

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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.