Home / 1,039,211,062.56-1,434,111,147.36-621,523,280.88

Finding the Fourth Proportional to 1,039,211,062.56, 1,434,111,147.36 and 621,523,280.88

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Solution

The fourth proportional to 1,039,211,062.56, 1,434,111,147.36 and 621,523,280.88 is: 857,702,056.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,039,211,062.56 : 1,434,111,147.36 = 621,523,280.88 : x
  2. Step 2: Convert to fraction form
    1,039,211,062.56/1,434,111,147.36 = 621,523,280.88/x
  3. Step 3: Cross multiply
    1,039,211,062.56x = 1,434,111,147.36 × 621,523,280.88
  4. Step 4: Simplify right side
    1,039,211,062.56x = 891,333,465,453,768,320
  5. Step 5: Solve for x
    x = 891,333,465,453,768,320/1,039,211,062.56
  6. Step 6: Final answer
    x = 857,702,056.46

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Double scale
Find fourth proportional to 1,039,211,063.56, 1,434,111,148.74 and 621,523,281.88
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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.