Home / 131,574,902.51-181,575,505.81-72,035,198.03

Finding the Fourth Proportional to 131,574,902.51, 181,575,505.81 and 72,035,198.03

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Solution

The fourth proportional to 131,574,902.51, 181,575,505.81 and 72,035,198.03 is: 99,409,745.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,574,902.51 : 181,575,505.81 = 72,035,198.03 : x
  2. Step 2: Convert to fraction form
    131,574,902.51/181,575,505.81 = 72,035,198.03/x
  3. Step 3: Cross multiply
    131,574,902.51x = 181,575,505.81 × 72,035,198.03
  4. Step 4: Simplify right side
    131,574,902.51x = 13,079,827,518,964,748
  5. Step 5: Solve for x
    x = 13,079,827,518,964,748/131,574,902.51
  6. Step 6: Final answer
    x = 99,409,745.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.