Home / 100,602,001.20-150,903,001.80-69,990,999.60

Finding the Fourth Proportional to 100,602,001.20, 150,903,001.80 and 69,990,999.60

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Solution

The fourth proportional to 100,602,001.20, 150,903,001.80 and 69,990,999.60 is: 104,986,499.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,602,001.20 : 150,903,001.80 = 69,990,999.60 : x
  2. Step 2: Convert to fraction form
    100,602,001.20/150,903,001.80 = 69,990,999.60/x
  3. Step 3: Cross multiply
    100,602,001.20x = 150,903,001.80 × 69,990,999.60
  4. Step 4: Simplify right side
    100,602,001.20x = 10,561,851,938,622,600
  5. Step 5: Solve for x
    x = 10,561,851,938,622,600/100,602,001.20
  6. Step 6: Final answer
    x = 104,986,499.40

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1.5x scale

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.