Home / 84,415,730.32-125,913,859.34-76,666,139.56

Finding the Fourth Proportional to 84,415,730.32, 125,913,859.34 and 76,666,139.56

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Solution

The fourth proportional to 84,415,730.32, 125,913,859.34 and 76,666,139.56 is: 114,354,628.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,415,730.32 : 125,913,859.34 = 76,666,139.56 : x
  2. Step 2: Convert to fraction form
    84,415,730.32/125,913,859.34 = 76,666,139.56/x
  3. Step 3: Cross multiply
    84,415,730.32x = 125,913,859.34 × 76,666,139.56
  4. Step 4: Simplify right side
    84,415,730.32x = 9,653,329,512,698,650
  5. Step 5: Solve for x
    x = 9,653,329,512,698,650/84,415,730.32
  6. Step 6: Final answer
    x = 114,354,628.88

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.