Home / 1,175,396,779.24-1,621,998,923.88-639,550,649.72

Finding the Fourth Proportional to 1,175,396,779.24, 1,621,998,923.88 and 639,550,649.72

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Solution

The fourth proportional to 1,175,396,779.24, 1,621,998,923.88 and 639,550,649.72 is: 882,553,435.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,175,396,779.24 : 1,621,998,923.88 = 639,550,649.72 : x
  2. Step 2: Convert to fraction form
    1,175,396,779.24/1,621,998,923.88 = 639,550,649.72/x
  3. Step 3: Cross multiply
    1,175,396,779.24x = 1,621,998,923.88 × 639,550,649.72
  4. Step 4: Simplify right side
    1,175,396,779.24x = 1,037,350,465,612,594,944
  5. Step 5: Solve for x
    x = 1,037,350,465,612,594,944/1,175,396,779.24
  6. Step 6: Final answer
    x = 882,553,435.52

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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.