Home / 56,754,717.29-78,321,509.40-30,649,232.82

Finding the Fourth Proportional to 56,754,717.29, 78,321,509.40 and 30,649,232.82

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Solution

The fourth proportional to 56,754,717.29, 78,321,509.40 and 30,649,232.82 is: 42,295,941.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,754,717.29 : 78,321,509.40 = 30,649,232.82 : x
  2. Step 2: Convert to fraction form
    56,754,717.29/78,321,509.40 = 30,649,232.82/x
  3. Step 3: Cross multiply
    56,754,717.29x = 78,321,509.40 × 30,649,232.82
  4. Step 4: Simplify right side
    56,754,717.29x = 2,400,494,176,144,844.50
  5. Step 5: Solve for x
    x = 2,400,494,176,144,844.50/56,754,717.29
  6. Step 6: Final answer
    x = 42,295,941.04

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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.