Home / 21,144,501.60-31,716,752.40-18,625,077.60

Finding the Fourth Proportional to 21,144,501.60, 31,716,752.40 and 18,625,077.60

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Solution

The fourth proportional to 21,144,501.60, 31,716,752.40 and 18,625,077.60 is: 27,937,616.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,144,501.60 : 31,716,752.40 = 18,625,077.60 : x
  2. Step 2: Convert to fraction form
    21,144,501.60/31,716,752.40 = 18,625,077.60/x
  3. Step 3: Cross multiply
    21,144,501.60x = 31,716,752.40 × 18,625,077.60
  4. Step 4: Simplify right side
    21,144,501.60x = 590,726,974,669,986.25
  5. Step 5: Solve for x
    x = 590,726,974,669,986.25/21,144,501.60
  6. Step 6: Final answer
    x = 27,937,616.40

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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.