Home / 21,885,826.30-30,186,776.18-15,360,911.80

Finding the Fourth Proportional to 21,885,826.30, 30,186,776.18 and 15,360,911.80

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Solution

The fourth proportional to 21,885,826.30, 30,186,776.18 and 15,360,911.80 is: 21,187,064.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,885,826.30 : 30,186,776.18 = 15,360,911.80 : x
  2. Step 2: Convert to fraction form
    21,885,826.30/30,186,776.18 = 15,360,911.80/x
  3. Step 3: Cross multiply
    21,885,826.30x = 30,186,776.18 × 15,360,911.80
  4. Step 4: Simplify right side
    21,885,826.30x = 463,696,406,427,320.94
  5. Step 5: Solve for x
    x = 463,696,406,427,320.94/21,885,826.30
  6. Step 6: Final answer
    x = 21,187,064.18

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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.