Home / 1,012,280,171.24-1,396,335,806.13-668,564,435.30

Finding the Fourth Proportional to 1,012,280,171.24, 1,396,335,806.13 and 668,564,435.30

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Solution

The fourth proportional to 1,012,280,171.24, 1,396,335,806.13 and 668,564,435.30 is: 922,215,495.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,012,280,171.24 : 1,396,335,806.13 = 668,564,435.30 : x
  2. Step 2: Convert to fraction form
    1,012,280,171.24/1,396,335,806.13 = 668,564,435.30/x
  3. Step 3: Cross multiply
    1,012,280,171.24x = 1,396,335,806.13 × 668,564,435.30
  4. Step 4: Simplify right side
    1,012,280,171.24x = 933,540,459,714,473,728
  5. Step 5: Solve for x
    x = 933,540,459,714,473,728/1,012,280,171.24
  6. Step 6: Final answer
    x = 922,215,495.51

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Double scale
Find fourth proportional to 1,012,280,172.24, 1,396,335,807.51 and 668,564,436.30
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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.