Home / 215,328,123-297,113,608.71-121,227,636.60

Finding the Fourth Proportional to 215,328,123, 297,113,608.71 and 121,227,636.60

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Solution

The fourth proportional to 215,328,123, 297,113,608.71 and 121,227,636.60 is: 167,272,068.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,328,123 : 297,113,608.71 = 121,227,636.60 : x
  2. Step 2: Convert to fraction form
    215,328,123/297,113,608.71 = 121,227,636.60/x
  3. Step 3: Cross multiply
    215,328,123x = 297,113,608.71 × 121,227,636.60
  4. Step 4: Simplify right side
    215,328,123x = 36,018,380,585,610,472
  5. Step 5: Solve for x
    x = 36,018,380,585,610,472/215,328,123
  6. Step 6: Final answer
    x = 167,272,068.71

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1.5x scale

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.