Home / 120,083,762.39-180,090,307.60-54,466,938.95

Finding the Fourth Proportional to 120,083,762.39, 180,090,307.60 and 54,466,938.95

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Solution

The fourth proportional to 120,083,762.39, 180,090,307.60 and 54,466,938.95 is: 81,684,380.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,083,762.39 : 180,090,307.60 = 54,466,938.95 : x
  2. Step 2: Convert to fraction form
    120,083,762.39/180,090,307.60 = 54,466,938.95/x
  3. Step 3: Cross multiply
    120,083,762.39x = 180,090,307.60 × 54,466,938.95
  4. Step 4: Simplify right side
    120,083,762.39x = 9,808,967,788,499,302
  5. Step 5: Solve for x
    x = 9,808,967,788,499,302/120,083,762.39
  6. Step 6: Final answer
    x = 81,684,380.92

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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.