Home / 139,098,589.28-191,946,423.20-77,214,036.32

Finding the Fourth Proportional to 139,098,589.28, 191,946,423.20 and 77,214,036.32

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Solution

The fourth proportional to 139,098,589.28, 191,946,423.20 and 77,214,036.32 is: 106,550,024.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,098,589.28 : 191,946,423.20 = 77,214,036.32 : x
  2. Step 2: Convert to fraction form
    139,098,589.28/191,946,423.20 = 77,214,036.32/x
  3. Step 3: Cross multiply
    139,098,589.28x = 191,946,423.20 × 77,214,036.32
  4. Step 4: Simplify right side
    139,098,589.28x = 14,820,958,092,458,888
  5. Step 5: Solve for x
    x = 14,820,958,092,458,888/139,098,589.28
  6. Step 6: Final answer
    x = 106,550,024.48

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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.