Home / 56,168,191.87-77,512,209.80-31,388,378.74

Finding the Fourth Proportional to 56,168,191.87, 77,512,209.80 and 31,388,378.74

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Solution

The fourth proportional to 56,168,191.87, 77,512,209.80 and 31,388,378.74 is: 43,316,021.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,168,191.87 : 77,512,209.80 = 31,388,378.74 : x
  2. Step 2: Convert to fraction form
    56,168,191.87/77,512,209.80 = 31,388,378.74/x
  3. Step 3: Cross multiply
    56,168,191.87x = 77,512,209.80 × 31,388,378.74
  4. Step 4: Simplify right side
    56,168,191.87x = 2,432,982,598,176,739.50
  5. Step 5: Solve for x
    x = 2,432,982,598,176,739.50/56,168,191.87
  6. Step 6: Final answer
    x = 43,316,021.35

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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.