Home / 153,308,999.81-211,565,343.47-83,694,380.69

Finding the Fourth Proportional to 153,308,999.81, 211,565,343.47 and 83,694,380.69

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Solution

The fourth proportional to 153,308,999.81, 211,565,343.47 and 83,694,380.69 is: 115,497,657.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,308,999.81 : 211,565,343.47 = 83,694,380.69 : x
  2. Step 2: Convert to fraction form
    153,308,999.81/211,565,343.47 = 83,694,380.69/x
  3. Step 3: Cross multiply
    153,308,999.81x = 211,565,343.47 × 83,694,380.69
  4. Step 4: Simplify right side
    153,308,999.81x = 17,706,830,397,299,226
  5. Step 5: Solve for x
    x = 17,706,830,397,299,226/153,308,999.81
  6. Step 6: Final answer
    x = 115,497,657.80

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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.