Home / 154,807,018.92-213,585,590.58-87,814,936.08

Finding the Fourth Proportional to 154,807,018.92, 213,585,590.58 and 87,814,936.08

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Solution

The fourth proportional to 154,807,018.92, 213,585,590.58 and 87,814,936.08 is: 121,157,329.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,807,018.92 : 213,585,590.58 = 87,814,936.08 : x
  2. Step 2: Convert to fraction form
    154,807,018.92/213,585,590.58 = 87,814,936.08/x
  3. Step 3: Cross multiply
    154,807,018.92x = 213,585,590.58 × 87,814,936.08
  4. Step 4: Simplify right side
    154,807,018.92x = 18,756,004,984,391,752
  5. Step 5: Solve for x
    x = 18,756,004,984,391,752/154,807,018.92
  6. Step 6: Final answer
    x = 121,157,329.40

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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.