Home / 718,890,638,220.10-992,100,265,701.73-398,106,473,328.13

Finding the Fourth Proportional to 718,890,638,220.10, 992,100,265,701.73 and 398,106,473,328.13

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Solution

The fourth proportional to 718,890,638,220.10, 992,100,265,701.73 and 398,106,473,328.13 is: 549,404,202,764.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,890,638,220.10 : 992,100,265,701.73 = 398,106,473,328.13 : x
  2. Step 2: Convert to fraction form
    718,890,638,220.10/992,100,265,701.73 = 398,106,473,328.13/x
  3. Step 3: Cross multiply
    718,890,638,220.10x = 992,100,265,701.73 × 398,106,473,328.13
  4. Step 4: Simplify right side
    718,890,638,220.10x = 394,961,537,966,416,479,649,792
  5. Step 5: Solve for x
    x = 394,961,537,966,416,479,649,792/718,890,638,220.10
  6. Step 6: Final answer
    x = 549,404,202,764.83

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Double scale
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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.