Home / 1,056,610,140.97-1,458,256,515.18-638,925,415.60

Finding the Fourth Proportional to 1,056,610,140.97, 1,458,256,515.18 and 638,925,415.60

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Solution

The fourth proportional to 1,056,610,140.97, 1,458,256,515.18 and 638,925,415.60 is: 881,798,417.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,056,610,140.97 : 1,458,256,515.18 = 638,925,415.60 : x
  2. Step 2: Convert to fraction form
    1,056,610,140.97/1,458,256,515.18 = 638,925,415.60/x
  3. Step 3: Cross multiply
    1,056,610,140.97x = 1,458,256,515.18 × 638,925,415.60
  4. Step 4: Simplify right side
    1,056,610,140.97x = 931,717,150,012,789,248
  5. Step 5: Solve for x
    x = 931,717,150,012,789,248/1,056,610,140.97
  6. Step 6: Final answer
    x = 881,798,417.30

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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.