Home / 30,711,527.18-42,382,953.54-18,163,338.50

Finding the Fourth Proportional to 30,711,527.18, 42,382,953.54 and 18,163,338.50

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Solution

The fourth proportional to 30,711,527.18, 42,382,953.54 and 18,163,338.50 is: 25,066,025.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,711,527.18 : 42,382,953.54 = 18,163,338.50 : x
  2. Step 2: Convert to fraction form
    30,711,527.18/42,382,953.54 = 18,163,338.50/x
  3. Step 3: Cross multiply
    30,711,527.18x = 42,382,953.54 × 18,163,338.50
  4. Step 4: Simplify right side
    30,711,527.18x = 769,815,931,776,793.25
  5. Step 5: Solve for x
    x = 769,815,931,776,793.25/30,711,527.18
  6. Step 6: Final answer
    x = 25,066,025.77

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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.