Home / 31,169,677.18-42,986,307-19,568,322.58

Finding the Fourth Proportional to 31,169,677.18, 42,986,307 and 19,568,322.58

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Solution

The fourth proportional to 31,169,677.18, 42,986,307 and 19,568,322.58 is: 26,986,802.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,169,677.18 : 42,986,307 = 19,568,322.58 : x
  2. Step 2: Convert to fraction form
    31,169,677.18/42,986,307 = 19,568,322.58/x
  3. Step 3: Cross multiply
    31,169,677.18x = 42,986,307 × 19,568,322.58
  4. Step 4: Simplify right side
    31,169,677.18x = 841,169,921,898,912
  5. Step 5: Solve for x
    x = 841,169,921,898,912/31,169,677.18
  6. Step 6: Final answer
    x = 26,986,802.50

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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.