Home / 145,158,423.51-200,318,273.73-79,079,464.77

Finding the Fourth Proportional to 145,158,423.51, 200,318,273.73 and 79,079,464.77

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Solution

The fourth proportional to 145,158,423.51, 200,318,273.73 and 79,079,464.77 is: 109,129,470.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,158,423.51 : 200,318,273.73 = 79,079,464.77 : x
  2. Step 2: Convert to fraction form
    145,158,423.51/200,318,273.73 = 79,079,464.77/x
  3. Step 3: Cross multiply
    145,158,423.51x = 200,318,273.73 × 79,079,464.77
  4. Step 4: Simplify right side
    145,158,423.51x = 15,841,061,870,218,750
  5. Step 5: Solve for x
    x = 15,841,061,870,218,750/145,158,423.51
  6. Step 6: Final answer
    x = 109,129,470.32

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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.