Home / 131,106,668.10-180,927,174.54-72,369,317.72

Finding the Fourth Proportional to 131,106,668.10, 180,927,174.54 and 72,369,317.72

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Solution

The fourth proportional to 131,106,668.10, 180,927,174.54 and 72,369,317.72 is: 99,869,643.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,106,668.10 : 180,927,174.54 = 72,369,317.72 : x
  2. Step 2: Convert to fraction form
    131,106,668.10/180,927,174.54 = 72,369,317.72/x
  3. Step 3: Cross multiply
    131,106,668.10x = 180,927,174.54 × 72,369,317.72
  4. Step 4: Simplify right side
    131,106,668.10x = 13,093,576,178,784,140
  5. Step 5: Solve for x
    x = 13,093,576,178,784,140/131,106,668.10
  6. Step 6: Final answer
    x = 99,869,643.31

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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.