Home / 129,896,013.87-179,255,070.56-70,355,828.71

Finding the Fourth Proportional to 129,896,013.87, 179,255,070.56 and 70,355,828.71

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Solution

The fourth proportional to 129,896,013.87, 179,255,070.56 and 70,355,828.71 is: 97,090,269.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,896,013.87 : 179,255,070.56 = 70,355,828.71 : x
  2. Step 2: Convert to fraction form
    129,896,013.87/179,255,070.56 = 70,355,828.71/x
  3. Step 3: Cross multiply
    129,896,013.87x = 179,255,070.56 × 70,355,828.71
  4. Step 4: Simplify right side
    129,896,013.87x = 12,611,639,039,718,322
  5. Step 5: Solve for x
    x = 12,611,639,039,718,322/129,896,013.87
  6. Step 6: Final answer
    x = 97,090,269.85

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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.