Home / 212,065,430.78-292,652,987.72-116,706,918.67

Finding the Fourth Proportional to 212,065,430.78, 292,652,987.72 and 116,706,918.67

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Solution

The fourth proportional to 212,065,430.78, 292,652,987.72 and 116,706,918.67 is: 161,057,029.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,065,430.78 : 292,652,987.72 = 116,706,918.67 : x
  2. Step 2: Convert to fraction form
    212,065,430.78/292,652,987.72 = 116,706,918.67/x
  3. Step 3: Cross multiply
    212,065,430.78x = 292,652,987.72 × 116,706,918.67
  4. Step 4: Simplify right side
    212,065,430.78x = 34,154,628,435,055,380
  5. Step 5: Solve for x
    x = 34,154,628,435,055,380/212,065,430.78
  6. Step 6: Final answer
    x = 161,057,029.94

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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.