Home / 134,857,681.72-186,103,601.02-72,978,020.26

Finding the Fourth Proportional to 134,857,681.72, 186,103,601.02 and 72,978,020.26

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Solution

The fourth proportional to 134,857,681.72, 186,103,601.02 and 72,978,020.26 is: 100,709,668.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,857,681.72 : 186,103,601.02 = 72,978,020.26 : x
  2. Step 2: Convert to fraction form
    134,857,681.72/186,103,601.02 = 72,978,020.26/x
  3. Step 3: Cross multiply
    134,857,681.72x = 186,103,601.02 × 72,978,020.26
  4. Step 4: Simplify right side
    134,857,681.72x = 13,581,472,365,696,518
  5. Step 5: Solve for x
    x = 13,581,472,365,696,518/134,857,681.72
  6. Step 6: Final answer
    x = 100,709,668.09

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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.