Home / 145,158,421.26-200,318,270.63-79,079,462.51

Finding the Fourth Proportional to 145,158,421.26, 200,318,270.63 and 79,079,462.51

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Solution

The fourth proportional to 145,158,421.26, 200,318,270.63 and 79,079,462.51 is: 109,129,467.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,158,421.26 : 200,318,270.63 = 79,079,462.51 : x
  2. Step 2: Convert to fraction form
    145,158,421.26/200,318,270.63 = 79,079,462.51/x
  3. Step 3: Cross multiply
    145,158,421.26x = 200,318,270.63 × 79,079,462.51
  4. Step 4: Simplify right side
    145,158,421.26x = 15,841,061,172,458,518
  5. Step 5: Solve for x
    x = 15,841,061,172,458,518/145,158,421.26
  6. Step 6: Final answer
    x = 109,129,467.21

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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.