Home / 1,020,549,873.88-1,529,581,151.41-528,992,143.12

Finding the Fourth Proportional to 1,020,549,873.88, 1,529,581,151.41 and 528,992,143.12

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Solution

The fourth proportional to 1,020,549,873.88, 1,529,581,151.41 and 528,992,143.12 is: 792,843,575.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,549,873.88 : 1,529,581,151.41 = 528,992,143.12 : x
  2. Step 2: Convert to fraction form
    1,020,549,873.88/1,529,581,151.41 = 528,992,143.12/x
  3. Step 3: Cross multiply
    1,020,549,873.88x = 1,529,581,151.41 × 528,992,143.12
  4. Step 4: Simplify right side
    1,020,549,873.88x = 809,136,411,364,449,536
  5. Step 5: Solve for x
    x = 809,136,411,364,449,536/1,020,549,873.88
  6. Step 6: Final answer
    x = 792,843,575.87

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.