Home / 30,898,729.32-42,675,635.88-20,349,277.98

Finding the Fourth Proportional to 30,898,729.32, 42,675,635.88 and 20,349,277.98

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Solution

The fourth proportional to 30,898,729.32, 42,675,635.88 and 20,349,277.98 is: 28,105,310.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,898,729.32 : 42,675,635.88 = 20,349,277.98 : x
  2. Step 2: Convert to fraction form
    30,898,729.32/42,675,635.88 = 20,349,277.98/x
  3. Step 3: Cross multiply
    30,898,729.32x = 42,675,635.88 × 20,349,277.98
  4. Step 4: Simplify right side
    30,898,729.32x = 868,418,377,495,382
  5. Step 5: Solve for x
    x = 868,418,377,495,382/30,898,729.32
  6. Step 6: Final answer
    x = 28,105,310.37

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.