Home / 77,123,323.59-106,432,145.27-42,316,004.80

Finding the Fourth Proportional to 77,123,323.59, 106,432,145.27 and 42,316,004.80

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Solution

The fourth proportional to 77,123,323.59, 106,432,145.27 and 42,316,004.80 is: 58,397,161.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,123,323.59 : 106,432,145.27 = 42,316,004.80 : x
  2. Step 2: Convert to fraction form
    77,123,323.59/106,432,145.27 = 42,316,004.80/x
  3. Step 3: Cross multiply
    77,123,323.59x = 106,432,145.27 × 42,316,004.80
  4. Step 4: Simplify right side
    77,123,323.59x = 4,503,783,170,119,617
  5. Step 5: Solve for x
    x = 4,503,783,170,119,617/77,123,323.59
  6. Step 6: Final answer
    x = 58,397,161.33

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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.