Home / 81,668,114.10-112,709,939.67-61,005,688.02

Finding the Fourth Proportional to 81,668,114.10, 112,709,939.67 and 61,005,688.02

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Solution

The fourth proportional to 81,668,114.10, 112,709,939.67 and 61,005,688.02 is: 84,193,782.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,668,114.10 : 112,709,939.67 = 61,005,688.02 : x
  2. Step 2: Convert to fraction form
    81,668,114.10/112,709,939.67 = 61,005,688.02/x
  3. Step 3: Cross multiply
    81,668,114.10x = 112,709,939.67 × 61,005,688.02
  4. Step 4: Simplify right side
    81,668,114.10x = 6,875,947,416,261,042
  5. Step 5: Solve for x
    x = 6,875,947,416,261,042/81,668,114.10
  6. Step 6: Final answer
    x = 84,193,782.26

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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.