Home / 1,190,917,662.69-1,785,210,094.02-666,542,830.53

Finding the Fourth Proportional to 1,190,917,662.69, 1,785,210,094.02 and 666,542,830.53

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Solution

The fourth proportional to 1,190,917,662.69, 1,785,210,094.02 and 666,542,830.53 is: 999,161,425.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190,917,662.69 : 1,785,210,094.02 = 666,542,830.53 : x
  2. Step 2: Convert to fraction form
    1,190,917,662.69/1,785,210,094.02 = 666,542,830.53/x
  3. Step 3: Cross multiply
    1,190,917,662.69x = 1,785,210,094.02 × 666,542,830.53
  4. Step 4: Simplify right side
    1,190,917,662.69x = 1,189,918,989,158,818,048
  5. Step 5: Solve for x
    x = 1,189,918,989,158,818,048/1,190,917,662.69
  6. Step 6: Final answer
    x = 999,161,425.21

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.