Home / 118,778,825.80-178,168,238.70-99,646,949.80

Finding the Fourth Proportional to 118,778,825.80, 178,168,238.70 and 99,646,949.80

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Solution

The fourth proportional to 118,778,825.80, 178,168,238.70 and 99,646,949.80 is: 149,470,424.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,778,825.80 : 178,168,238.70 = 99,646,949.80 : x
  2. Step 2: Convert to fraction form
    118,778,825.80/178,168,238.70 = 99,646,949.80/x
  3. Step 3: Cross multiply
    118,778,825.80x = 178,168,238.70 × 99,646,949.80
  4. Step 4: Simplify right side
    118,778,825.80x = 17,753,921,537,693,316
  5. Step 5: Solve for x
    x = 17,753,921,537,693,316/118,778,825.80
  6. Step 6: Final answer
    x = 149,470,424.70

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1.5x scale

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.