Home / 1,227,205,459.74-1,693,548,706.50-691,363,554.18

Finding the Fourth Proportional to 1,227,205,459.74, 1,693,548,706.50 and 691,363,554.18

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Solution

The fourth proportional to 1,227,205,459.74, 1,693,548,706.50 and 691,363,554.18 is: 954,084,618.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,227,205,459.74 : 1,693,548,706.50 = 691,363,554.18 : x
  2. Step 2: Convert to fraction form
    1,227,205,459.74/1,693,548,706.50 = 691,363,554.18/x
  3. Step 3: Cross multiply
    1,227,205,459.74x = 1,693,548,706.50 × 691,363,554.18
  4. Step 4: Simplify right side
    1,227,205,459.74x = 1,170,857,852,894,313,728
  5. Step 5: Solve for x
    x = 1,170,857,852,894,313,728/1,227,205,459.74
  6. Step 6: Final answer
    x = 954,084,618.51

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Double scale
Find fourth proportional to 1,227,205,460.74, 1,693,548,707.88 and 691,363,555.18
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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.