Home / 21,840,434.13-30,140,430.12-12,051,508.92

Finding the Fourth Proportional to 21,840,434.13, 30,140,430.12 and 12,051,508.92

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Solution

The fourth proportional to 21,840,434.13, 30,140,430.12 and 12,051,508.92 is: 16,631,430.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,840,434.13 : 30,140,430.12 = 12,051,508.92 : x
  2. Step 2: Convert to fraction form
    21,840,434.13/30,140,430.12 = 12,051,508.92/x
  3. Step 3: Cross multiply
    21,840,434.13x = 30,140,430.12 × 12,051,508.92
  4. Step 4: Simplify right side
    21,840,434.13x = 363,237,662,443,816.69
  5. Step 5: Solve for x
    x = 363,237,662,443,816.69/21,840,434.13
  6. Step 6: Final answer
    x = 16,631,430.51

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1.5x scale

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.