Home / 118,773,022.80-178,159,534.20-99,641,146.80

Finding the Fourth Proportional to 118,773,022.80, 178,159,534.20 and 99,641,146.80

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Solution

The fourth proportional to 118,773,022.80, 178,159,534.20 and 99,641,146.80 is: 149,461,720.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,773,022.80 : 178,159,534.20 = 99,641,146.80 : x
  2. Step 2: Convert to fraction form
    118,773,022.80/178,159,534.20 = 99,641,146.80/x
  3. Step 3: Cross multiply
    118,773,022.80x = 178,159,534.20 × 99,641,146.80
  4. Step 4: Simplify right side
    118,773,022.80x = 17,752,020,301,041,818
  5. Step 5: Solve for x
    x = 17,752,020,301,041,818/118,773,022.80
  6. Step 6: Final answer
    x = 149,461,720.20

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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.