Home / 153,642,106,846.30-212,028,617,644.88-84,116,587,820.45

Finding the Fourth Proportional to 153,642,106,846.30, 212,028,617,644.88 and 84,116,587,820.45

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Solution

The fourth proportional to 153,642,106,846.30, 212,028,617,644.88 and 84,116,587,820.45 is: 116,082,265,484.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,642,106,846.30 : 212,028,617,644.88 = 84,116,587,820.45 : x
  2. Step 2: Convert to fraction form
    153,642,106,846.30/212,028,617,644.88 = 84,116,587,820.45/x
  3. Step 3: Cross multiply
    153,642,106,846.30x = 212,028,617,644.88 × 84,116,587,820.45
  4. Step 4: Simplify right side
    153,642,106,846.30x = 17,835,123,836,573,104,209,920
  5. Step 5: Solve for x
    x = 17,835,123,836,573,104,209,920/153,642,106,846.30
  6. Step 6: Final answer
    x = 116,082,265,484.78

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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.