Home / 889,986,085.20-1,335,545,998.20-521,520,325.20

Finding the Fourth Proportional to 889,986,085.20, 1,335,545,998.20 and 521,520,325.20

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Solution

The fourth proportional to 889,986,085.20, 1,335,545,998.20 and 521,520,325.20 is: 782,612,666.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,986,085.20 : 1,335,545,998.20 = 521,520,325.20 : x
  2. Step 2: Convert to fraction form
    889,986,085.20/1,335,545,998.20 = 521,520,325.20/x
  3. Step 3: Cross multiply
    889,986,085.20x = 1,335,545,998.20 × 521,520,325.20
  4. Step 4: Simplify right side
    889,986,085.20x = 696,514,383,300,822,656
  5. Step 5: Solve for x
    x = 696,514,383,300,822,656/889,986,085.20
  6. Step 6: Final answer
    x = 782,612,666.52

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1.5x scale

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.