Home / 318,125,278,631.34-439,012,768,551.93-173,609,408,671.02

Finding the Fourth Proportional to 318,125,278,631.34, 439,012,768,551.93 and 173,609,408,671.02

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Solution

The fourth proportional to 318,125,278,631.34, 439,012,768,551.93 and 173,609,408,671.02 is: 239,580,920,683.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,125,278,631.34 : 439,012,768,551.93 = 173,609,408,671.02 : x
  2. Step 2: Convert to fraction form
    318,125,278,631.34/439,012,768,551.93 = 173,609,408,671.02/x
  3. Step 3: Cross multiply
    318,125,278,631.34x = 439,012,768,551.93 × 173,609,408,671.02
  4. Step 4: Simplify right side
    318,125,278,631.34x = 76,216,747,147,327,929,581,568
  5. Step 5: Solve for x
    x = 76,216,747,147,327,929,581,568/318,125,278,631.34
  6. Step 6: Final answer
    x = 239,580,920,683.93

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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.