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Finding the Fourth Proportional to 213,408,053.80, 299,577,491 and 213,408,053.80

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Solution

The fourth proportional to 213,408,053.80, 299,577,491 and 213,408,053.80 is: 299,577,491

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,408,053.80 : 299,577,491 = 213,408,053.80 : x
  2. Step 2: Convert to fraction form
    213,408,053.80/299,577,491 = 213,408,053.80/x
  3. Step 3: Cross multiply
    213,408,053.80x = 299,577,491 × 213,408,053.80
  4. Step 4: Simplify right side
    213,408,053.80x = 63,932,249,316,597,016
  5. Step 5: Solve for x
    x = 63,932,249,316,597,016/213,408,053.80
  6. Step 6: Final answer
    x = 299,577,491

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.