Home / 129,749,115.52-179,054,253.93-70,210,412.20

Finding the Fourth Proportional to 129,749,115.52, 179,054,253.93 and 70,210,412.20

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Solution

The fourth proportional to 129,749,115.52, 179,054,253.93 and 70,210,412.20 is: 96,890,625.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,749,115.52 : 179,054,253.93 = 70,210,412.20 : x
  2. Step 2: Convert to fraction form
    129,749,115.52/179,054,253.93 = 70,210,412.20/x
  3. Step 3: Cross multiply
    129,749,115.52x = 179,054,253.93 × 70,210,412.20
  4. Step 4: Simplify right side
    129,749,115.52x = 12,571,472,974,588,770
  5. Step 5: Solve for x
    x = 12,571,472,974,588,770/129,749,115.52
  6. Step 6: Final answer
    x = 96,890,625.61

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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.