Home / 154,184,640-212,822,441.28-99,180,501.36

Finding the Fourth Proportional to 154,184,640, 212,822,441.28 and 99,180,501.36

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Solution

The fourth proportional to 154,184,640, 212,822,441.28 and 99,180,501.36 is: 136,899,735.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,184,640 : 212,822,441.28 = 99,180,501.36 : x
  2. Step 2: Convert to fraction form
    154,184,640/212,822,441.28 = 99,180,501.36/x
  3. Step 3: Cross multiply
    154,184,640x = 212,822,441.28 × 99,180,501.36
  4. Step 4: Simplify right side
    154,184,640x = 21,107,836,426,809,560
  5. Step 5: Solve for x
    x = 21,107,836,426,809,560/154,184,640
  6. Step 6: Final answer
    x = 136,899,735.45

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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.