Home / 48,542,430.40-72,813,645.60-12,640,638.40

Finding the Fourth Proportional to 48,542,430.40, 72,813,645.60 and 12,640,638.40

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Solution

The fourth proportional to 48,542,430.40, 72,813,645.60 and 12,640,638.40 is: 18,960,957.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,542,430.40 : 72,813,645.60 = 12,640,638.40 : x
  2. Step 2: Convert to fraction form
    48,542,430.40/72,813,645.60 = 12,640,638.40/x
  3. Step 3: Cross multiply
    48,542,430.40x = 72,813,645.60 × 12,640,638.40
  4. Step 4: Simplify right side
    48,542,430.40x = 920,410,964,615,351
  5. Step 5: Solve for x
    x = 920,410,964,615,351/48,542,430.40
  6. Step 6: Final answer
    x = 18,960,957.60

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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.