Home / 139,490,681,532.44-209,269,277,179.95-45,163,657,711.76

Finding the Fourth Proportional to 139,490,681,532.44, 209,269,277,179.95 and 45,163,657,711.76

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Solution

The fourth proportional to 139,490,681,532.44, 209,269,277,179.95 and 45,163,657,711.76 is: 67,756,253,681.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,490,681,532.44 : 209,269,277,179.95 = 45,163,657,711.76 : x
  2. Step 2: Convert to fraction form
    139,490,681,532.44/209,269,277,179.95 = 45,163,657,711.76/x
  3. Step 3: Cross multiply
    139,490,681,532.44x = 209,269,277,179.95 × 45,163,657,711.76
  4. Step 4: Simplify right side
    139,490,681,532.44x = 9,451,366,004,142,691,581,952
  5. Step 5: Solve for x
    x = 9,451,366,004,142,691,581,952/139,490,681,532.44
  6. Step 6: Final answer
    x = 67,756,253,681.68

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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.