Home / 153,308,700.81-211,564,930.93-83,694,081.70

Finding the Fourth Proportional to 153,308,700.81, 211,564,930.93 and 83,694,081.70

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Solution

The fourth proportional to 153,308,700.81, 211,564,930.93 and 83,694,081.70 is: 115,497,245.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,308,700.81 : 211,564,930.93 = 83,694,081.70 : x
  2. Step 2: Convert to fraction form
    153,308,700.81/211,564,930.93 = 83,694,081.70/x
  3. Step 3: Cross multiply
    153,308,700.81x = 211,564,930.93 × 83,694,081.70
  4. Step 4: Simplify right side
    153,308,700.81x = 17,706,732,614,165,500
  5. Step 5: Solve for x
    x = 17,706,732,614,165,500/153,308,700.81
  6. Step 6: Final answer
    x = 115,497,245.24

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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.