Home / 434,641,561.76-651,982,528.74-139,548,723.50

Finding the Fourth Proportional to 434,641,561.76, 651,982,528.74 and 139,548,723.50

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Solution

The fourth proportional to 434,641,561.76, 651,982,528.74 and 139,548,723.50 is: 209,329,566.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,641,561.76 : 651,982,528.74 = 139,548,723.50 : x
  2. Step 2: Convert to fraction form
    434,641,561.76/651,982,528.74 = 139,548,723.50/x
  3. Step 3: Cross multiply
    434,641,561.76x = 651,982,528.74 × 139,548,723.50
  4. Step 4: Simplify right side
    434,641,561.76x = 90,983,329,629,969,072
  5. Step 5: Solve for x
    x = 90,983,329,629,969,072/434,641,561.76
  6. Step 6: Final answer
    x = 209,329,566.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.