Home / 57,781,920.40-86,672,880.60-19,430,688.40

Finding the Fourth Proportional to 57,781,920.40, 86,672,880.60 and 19,430,688.40

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Solution

The fourth proportional to 57,781,920.40, 86,672,880.60 and 19,430,688.40 is: 29,146,032.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,781,920.40 : 86,672,880.60 = 19,430,688.40 : x
  2. Step 2: Convert to fraction form
    57,781,920.40/86,672,880.60 = 19,430,688.40/x
  3. Step 3: Cross multiply
    57,781,920.40x = 86,672,880.60 × 19,430,688.40
  4. Step 4: Simplify right side
    57,781,920.40x = 1,684,113,735,669,004.75
  5. Step 5: Solve for x
    x = 1,684,113,735,669,004.75/57,781,920.40
  6. Step 6: Final answer
    x = 29,146,032.60

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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.