Home / 21,860,398.39-30,156,453.70-13,033,624.47

Finding the Fourth Proportional to 21,860,398.39, 30,156,453.70 and 13,033,624.47

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Solution

The fourth proportional to 21,860,398.39, 30,156,453.70 and 13,033,624.47 is: 17,979,905.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,860,398.39 : 30,156,453.70 = 13,033,624.47 : x
  2. Step 2: Convert to fraction form
    21,860,398.39/30,156,453.70 = 13,033,624.47/x
  3. Step 3: Cross multiply
    21,860,398.39x = 30,156,453.70 × 13,033,624.47
  4. Step 4: Simplify right side
    21,860,398.39x = 393,047,892,811,871.25
  5. Step 5: Solve for x
    x = 393,047,892,811,871.25/21,860,398.39
  6. Step 6: Final answer
    x = 17,979,905.30

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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.