Home / 100,890,127.20-151,335,190.80-28,118,139.60

Finding the Fourth Proportional to 100,890,127.20, 151,335,190.80 and 28,118,139.60

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Solution

The fourth proportional to 100,890,127.20, 151,335,190.80 and 28,118,139.60 is: 42,177,209.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,890,127.20 : 151,335,190.80 = 28,118,139.60 : x
  2. Step 2: Convert to fraction form
    100,890,127.20/151,335,190.80 = 28,118,139.60/x
  3. Step 3: Cross multiply
    100,890,127.20x = 151,335,190.80 × 28,118,139.60
  4. Step 4: Simplify right side
    100,890,127.20x = 4,255,264,021,307,036
  5. Step 5: Solve for x
    x = 4,255,264,021,307,036/100,890,127.20
  6. Step 6: Final answer
    x = 42,177,209.40

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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.