Home / 77,108,940.60-115,660,130.40-25,990,877.40

Finding the Fourth Proportional to 77,108,940.60, 115,660,130.40 and 25,990,877.40

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Solution

The fourth proportional to 77,108,940.60, 115,660,130.40 and 25,990,877.40 is: 38,985,210.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,108,940.60 : 115,660,130.40 = 25,990,877.40 : x
  2. Step 2: Convert to fraction form
    77,108,940.60/115,660,130.40 = 25,990,877.40/x
  3. Step 3: Cross multiply
    77,108,940.60x = 115,660,130.40 × 25,990,877.40
  4. Step 4: Simplify right side
    77,108,940.60x = 3,006,108,269,294,413
  5. Step 5: Solve for x
    x = 3,006,108,269,294,413/77,108,940.60
  6. Step 6: Final answer
    x = 38,985,210.35

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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.