Home / 118,773,021.80-178,159,532.70-99,641,145.80

Finding the Fourth Proportional to 118,773,021.80, 178,159,532.70 and 99,641,145.80

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Solution

The fourth proportional to 118,773,021.80, 178,159,532.70 and 99,641,145.80 is: 149,461,718.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,773,021.80 : 178,159,532.70 = 99,641,145.80 : x
  2. Step 2: Convert to fraction form
    118,773,021.80/178,159,532.70 = 99,641,145.80/x
  3. Step 3: Cross multiply
    118,773,021.80x = 178,159,532.70 × 99,641,145.80
  4. Step 4: Simplify right side
    118,773,021.80x = 17,752,019,973,420,566
  5. Step 5: Solve for x
    x = 17,752,019,973,420,566/118,773,021.80
  6. Step 6: Final answer
    x = 149,461,718.70

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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.