Home / 70,739,569.10-97,619,916.39-39,377,120.78

Finding the Fourth Proportional to 70,739,569.10, 97,619,916.39 and 39,377,120.78

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Solution

The fourth proportional to 70,739,569.10, 97,619,916.39 and 39,377,120.78 is: 54,340,043.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,739,569.10 : 97,619,916.39 = 39,377,120.78 : x
  2. Step 2: Convert to fraction form
    70,739,569.10/97,619,916.39 = 39,377,120.78/x
  3. Step 3: Cross multiply
    70,739,569.10x = 97,619,916.39 × 39,377,120.78
  4. Step 4: Simplify right side
    70,739,569.10x = 3,843,991,237,734,432
  5. Step 5: Solve for x
    x = 3,843,991,237,734,432/70,739,569.10
  6. Step 6: Final answer
    x = 54,340,043.16

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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.