Home / 1,118,352,880.72-1,543,260,579.24-641,933,184.88

Finding the Fourth Proportional to 1,118,352,880.72, 1,543,260,579.24 and 641,933,184.88

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Solution

The fourth proportional to 1,118,352,880.72, 1,543,260,579.24 and 641,933,184.88 is: 885,829,683.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,118,352,880.72 : 1,543,260,579.24 = 641,933,184.88 : x
  2. Step 2: Convert to fraction form
    1,118,352,880.72/1,543,260,579.24 = 641,933,184.88/x
  3. Step 3: Cross multiply
    1,118,352,880.72x = 1,543,260,579.24 × 641,933,184.88
  4. Step 4: Simplify right side
    1,118,352,880.72x = 990,670,178,731,286,784
  5. Step 5: Solve for x
    x = 990,670,178,731,286,784/1,118,352,880.72
  6. Step 6: Final answer
    x = 885,829,683.82

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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.