Home / 120,390,348,609.52-180,581,432,975.51-30,854,221,182.70

Finding the Fourth Proportional to 120,390,348,609.52, 180,581,432,975.51 and 30,854,221,182.70

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Solution

The fourth proportional to 120,390,348,609.52, 180,581,432,975.51 and 30,854,221,182.70 is: 46,280,283,584.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,390,348,609.52 : 180,581,432,975.51 = 30,854,221,182.70 : x
  2. Step 2: Convert to fraction form
    120,390,348,609.52/180,581,432,975.51 = 30,854,221,182.70/x
  3. Step 3: Cross multiply
    120,390,348,609.52x = 180,581,432,975.51 × 30,854,221,182.70
  4. Step 4: Simplify right side
    120,390,348,609.52x = 5,571,699,474,514,758,860,800
  5. Step 5: Solve for x
    x = 5,571,699,474,514,758,860,800/120,390,348,609.52
  6. Step 6: Final answer
    x = 46,280,283,584.74

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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.