Home / 78,282,943.63-108,024,162.13-45,245,332.60

Finding the Fourth Proportional to 78,282,943.63, 108,024,162.13 and 45,245,332.60

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Solution

The fourth proportional to 78,282,943.63, 108,024,162.13 and 45,245,332.60 is: 62,434,917.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,282,943.63 : 108,024,162.13 = 45,245,332.60 : x
  2. Step 2: Convert to fraction form
    78,282,943.63/108,024,162.13 = 45,245,332.60/x
  3. Step 3: Cross multiply
    78,282,943.63x = 108,024,162.13 × 45,245,332.60
  4. Step 4: Simplify right side
    78,282,943.63x = 4,887,589,144,408,174
  5. Step 5: Solve for x
    x = 4,887,589,144,408,174/78,282,943.63
  6. Step 6: Final answer
    x = 62,434,917.72

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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.