Home / 77,530,223.36-106,992,425.78-42,724,159.40

Finding the Fourth Proportional to 77,530,223.36, 106,992,425.78 and 42,724,159.40

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Solution

The fourth proportional to 77,530,223.36, 106,992,425.78 and 42,724,159.40 is: 58,959,735.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,530,223.36 : 106,992,425.78 = 42,724,159.40 : x
  2. Step 2: Convert to fraction form
    77,530,223.36/106,992,425.78 = 42,724,159.40/x
  3. Step 3: Cross multiply
    77,530,223.36x = 106,992,425.78 × 42,724,159.40
  4. Step 4: Simplify right side
    77,530,223.36x = 4,571,161,453,617,389
  5. Step 5: Solve for x
    x = 4,571,161,453,617,389/77,530,223.36
  6. Step 6: Final answer
    x = 58,959,735.38

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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.