Home / 129,749,085.76-179,054,212.88-70,210,382.40

Finding the Fourth Proportional to 129,749,085.76, 179,054,212.88 and 70,210,382.40

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Solution

The fourth proportional to 129,749,085.76, 179,054,212.88 and 70,210,382.40 is: 96,890,584.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,749,085.76 : 179,054,212.88 = 70,210,382.40 : x
  2. Step 2: Convert to fraction form
    129,749,085.76/179,054,212.88 = 70,210,382.40/x
  3. Step 3: Cross multiply
    129,749,085.76x = 179,054,212.88 × 70,210,382.40
  4. Step 4: Simplify right side
    129,749,085.76x = 12,571,464,756,811,332
  5. Step 5: Solve for x
    x = 12,571,464,756,811,332/129,749,085.76
  6. Step 6: Final answer
    x = 96,890,584.50

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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.