Home / 21,157,724.40-31,804,237.80-19,660,066.80

Finding the Fourth Proportional to 21,157,724.40, 31,804,237.80 and 19,660,066.80

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Solution

The fourth proportional to 21,157,724.40, 31,804,237.80 and 19,660,066.80 is: 29,552,962.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,157,724.40 : 31,804,237.80 = 19,660,066.80 : x
  2. Step 2: Convert to fraction form
    21,157,724.40/31,804,237.80 = 19,660,066.80/x
  3. Step 3: Cross multiply
    21,157,724.40x = 31,804,237.80 × 19,660,066.80
  4. Step 4: Simplify right side
    21,157,724.40x = 625,273,439,671,085.12
  5. Step 5: Solve for x
    x = 625,273,439,671,085.12/21,157,724.40
  6. Step 6: Final answer
    x = 29,552,962.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.