Home / 21,931,303.50-30,265,206.12-12,008,813.76

Finding the Fourth Proportional to 21,931,303.50, 30,265,206.12 and 12,008,813.76

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Solution

The fourth proportional to 21,931,303.50, 30,265,206.12 and 12,008,813.76 is: 16,572,166.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,931,303.50 : 30,265,206.12 = 12,008,813.76 : x
  2. Step 2: Convert to fraction form
    21,931,303.50/30,265,206.12 = 12,008,813.76/x
  3. Step 3: Cross multiply
    21,931,303.50x = 30,265,206.12 × 12,008,813.76
  4. Step 4: Simplify right side
    21,931,303.50x = 363,449,223,703,092.19
  5. Step 5: Solve for x
    x = 363,449,223,703,092.19/21,931,303.50
  6. Step 6: Final answer
    x = 16,572,166.98

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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.