Home / 443,329,645,371.90-664,927,277,490.78-120,657,603,421.35

Finding the Fourth Proportional to 443,329,645,371.90, 664,927,277,490.78 and 120,657,603,421.35

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Solution

The fourth proportional to 443,329,645,371.90, 664,927,277,490.78 and 120,657,603,421.35 is: 180,968,118,394.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,329,645,371.90 : 664,927,277,490.78 = 120,657,603,421.35 : x
  2. Step 2: Convert to fraction form
    443,329,645,371.90/664,927,277,490.78 = 120,657,603,421.35/x
  3. Step 3: Cross multiply
    443,329,645,371.90x = 664,927,277,490.78 × 120,657,603,421.35
  4. Step 4: Simplify right side
    443,329,645,371.90x = 80,228,531,751,520,479,215,616
  5. Step 5: Solve for x
    x = 80,228,531,751,520,479,215,616/443,329,645,371.90
  6. Step 6: Final answer
    x = 180,968,118,394.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.