Home / 986,241,867.12-1,360,358,284.32-634,263,112.80

Finding the Fourth Proportional to 986,241,867.12, 1,360,358,284.32 and 634,263,112.80

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Solution

The fourth proportional to 986,241,867.12, 1,360,358,284.32 and 634,263,112.80 is: 874,861,541.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,241,867.12 : 1,360,358,284.32 = 634,263,112.80 : x
  2. Step 2: Convert to fraction form
    986,241,867.12/1,360,358,284.32 = 634,263,112.80/x
  3. Step 3: Cross multiply
    986,241,867.12x = 1,360,358,284.32 × 634,263,112.80
  4. Step 4: Simplify right side
    986,241,867.12x = 862,825,079,936,070,528
  5. Step 5: Solve for x
    x = 862,825,079,936,070,528/986,241,867.12
  6. Step 6: Final answer
    x = 874,861,541.27

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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.