Home / 140,083,545.15-210,252,828.20-74,559,693.12

Finding the Fourth Proportional to 140,083,545.15, 210,252,828.20 and 74,559,693.12

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Solution

The fourth proportional to 140,083,545.15, 210,252,828.20 and 74,559,693.12 is: 111,907,407.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,083,545.15 : 210,252,828.20 = 74,559,693.12 : x
  2. Step 2: Convert to fraction form
    140,083,545.15/210,252,828.20 = 74,559,693.12/x
  3. Step 3: Cross multiply
    140,083,545.15x = 210,252,828.20 × 74,559,693.12
  4. Step 4: Simplify right side
    140,083,545.15x = 15,676,386,347,831,284
  5. Step 5: Solve for x
    x = 15,676,386,347,831,284/140,083,545.15
  6. Step 6: Final answer
    x = 111,907,407.33

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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.