Home / 153,761,118.69-212,190,206.67-86,794,172.54

Finding the Fourth Proportional to 153,761,118.69, 212,190,206.67 and 86,794,172.54

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Solution

The fourth proportional to 153,761,118.69, 212,190,206.67 and 86,794,172.54 is: 119,775,880.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,761,118.69 : 212,190,206.67 = 86,794,172.54 : x
  2. Step 2: Convert to fraction form
    153,761,118.69/212,190,206.67 = 86,794,172.54/x
  3. Step 3: Cross multiply
    153,761,118.69x = 212,190,206.67 × 86,794,172.54
  4. Step 4: Simplify right side
    153,761,118.69x = 18,416,873,407,953,284
  5. Step 5: Solve for x
    x = 18,416,873,407,953,284/153,761,118.69
  6. Step 6: Final answer
    x = 119,775,880.70

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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.