Home / 30,719,601.88-42,392,087.40-16,780,733.08

Finding the Fourth Proportional to 30,719,601.88, 42,392,087.40 and 16,780,733.08

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Solution

The fourth proportional to 30,719,601.88, 42,392,087.40 and 16,780,733.08 is: 23,156,885.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,719,601.88 : 42,392,087.40 = 16,780,733.08 : x
  2. Step 2: Convert to fraction form
    30,719,601.88/42,392,087.40 = 16,780,733.08/x
  3. Step 3: Cross multiply
    30,719,601.88x = 42,392,087.40 × 16,780,733.08
  4. Step 4: Simplify right side
    30,719,601.88x = 711,370,303,363,431.12
  5. Step 5: Solve for x
    x = 711,370,303,363,431.12/30,719,601.88
  6. Step 6: Final answer
    x = 23,156,885.50

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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.