Home / 28,689,530,253.53-39,604,248,711.21-18,533,211,318.81

Finding the Fourth Proportional to 28,689,530,253.53, 39,604,248,711.21 and 18,533,211,318.81

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Solution

The fourth proportional to 28,689,530,253.53, 39,604,248,711.21 and 18,533,211,318.81 is: 25,584,033,757.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,689,530,253.53 : 39,604,248,711.21 = 18,533,211,318.81 : x
  2. Step 2: Convert to fraction form
    28,689,530,253.53/39,604,248,711.21 = 18,533,211,318.81/x
  3. Step 3: Cross multiply
    28,689,530,253.53x = 39,604,248,711.21 × 18,533,211,318.81
  4. Step 4: Simplify right side
    28,689,530,253.53x = 733,993,910,487,637,688,320
  5. Step 5: Solve for x
    x = 733,993,910,487,637,688,320/28,689,530,253.53
  6. Step 6: Final answer
    x = 25,584,033,757.31

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1.5x scale

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.