Home / 154,009,282.53-212,543,237.39-87,005,001.48

Finding the Fourth Proportional to 154,009,282.53, 212,543,237.39 and 87,005,001.48

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Solution

The fourth proportional to 154,009,282.53, 212,543,237.39 and 87,005,001.48 is: 120,072,792.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,009,282.53 : 212,543,237.39 = 87,005,001.48 : x
  2. Step 2: Convert to fraction form
    154,009,282.53/212,543,237.39 = 87,005,001.48/x
  3. Step 3: Cross multiply
    154,009,282.53x = 212,543,237.39 × 87,005,001.48
  4. Step 4: Simplify right side
    154,009,282.53x = 18,492,324,683,680,940
  5. Step 5: Solve for x
    x = 18,492,324,683,680,940/154,009,282.53
  6. Step 6: Final answer
    x = 120,072,792.89

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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.