Home / 171,732,990.15-257,464,003.01-85,424,289.03

Finding the Fourth Proportional to 171,732,990.15, 257,464,003.01 and 85,424,289.03

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Solution

The fourth proportional to 171,732,990.15, 257,464,003.01 and 85,424,289.03 is: 128,069,041.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,732,990.15 : 257,464,003.01 = 85,424,289.03 : x
  2. Step 2: Convert to fraction form
    171,732,990.15/257,464,003.01 = 85,424,289.03/x
  3. Step 3: Cross multiply
    171,732,990.15x = 257,464,003.01 × 85,424,289.03
  4. Step 4: Simplify right side
    171,732,990.15x = 21,993,679,407,519,908
  5. Step 5: Solve for x
    x = 21,993,679,407,519,908/171,732,990.15
  6. Step 6: Final answer
    x = 128,069,041.30

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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.