Home / 118,772,885.80-178,159,328.70-99,641,009.80

Finding the Fourth Proportional to 118,772,885.80, 178,159,328.70 and 99,641,009.80

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Solution

The fourth proportional to 118,772,885.80, 178,159,328.70 and 99,641,009.80 is: 149,461,514.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,772,885.80 : 178,159,328.70 = 99,641,009.80 : x
  2. Step 2: Convert to fraction form
    118,772,885.80/178,159,328.70 = 99,641,009.80/x
  3. Step 3: Cross multiply
    118,772,885.80x = 178,159,328.70 × 99,641,009.80
  4. Step 4: Simplify right side
    118,772,885.80x = 17,751,975,416,958,120
  5. Step 5: Solve for x
    x = 17,751,975,416,958,120/118,772,885.80
  6. Step 6: Final answer
    x = 149,461,514.70

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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.