Home / 153,194,518.86-211,408,194.88-83,579,905.90

Finding the Fourth Proportional to 153,194,518.86, 211,408,194.88 and 83,579,905.90

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Solution

The fourth proportional to 153,194,518.86, 211,408,194.88 and 83,579,905.90 is: 115,340,138.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,194,518.86 : 211,408,194.88 = 83,579,905.90 : x
  2. Step 2: Convert to fraction form
    153,194,518.86/211,408,194.88 = 83,579,905.90/x
  3. Step 3: Cross multiply
    153,194,518.86x = 211,408,194.88 × 83,579,905.90
  4. Step 4: Simplify right side
    153,194,518.86x = 17,669,477,034,559,262
  5. Step 5: Solve for x
    x = 17,669,477,034,559,262/153,194,518.86
  6. Step 6: Final answer
    x = 115,340,138.58

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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.