Home / 139,888,534.34-193,046,363.36-77,163,217.38

Finding the Fourth Proportional to 139,888,534.34, 193,046,363.36 and 77,163,217.38

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Solution

The fourth proportional to 139,888,534.34, 193,046,363.36 and 77,163,217.38 is: 106,485,342.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,888,534.34 : 193,046,363.36 = 77,163,217.38 : x
  2. Step 2: Convert to fraction form
    139,888,534.34/193,046,363.36 = 77,163,217.38/x
  3. Step 3: Cross multiply
    139,888,534.34x = 193,046,363.36 × 77,163,217.38
  4. Step 4: Simplify right side
    139,888,534.34x = 14,896,078,499,980,330
  5. Step 5: Solve for x
    x = 14,896,078,499,980,330/139,888,534.34
  6. Step 6: Final answer
    x = 106,485,342.57

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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.