Home / 723,805,216.80-1,085,707,825.20-417,695,200.80

Finding the Fourth Proportional to 723,805,216.80, 1,085,707,825.20 and 417,695,200.80

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Solution

The fourth proportional to 723,805,216.80, 1,085,707,825.20 and 417,695,200.80 is: 626,542,801.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,805,216.80 : 1,085,707,825.20 = 417,695,200.80 : x
  2. Step 2: Convert to fraction form
    723,805,216.80/1,085,707,825.20 = 417,695,200.80/x
  3. Step 3: Cross multiply
    723,805,216.80x = 1,085,707,825.20 × 417,695,200.80
  4. Step 4: Simplify right side
    723,805,216.80x = 453,494,948,057,045,312
  5. Step 5: Solve for x
    x = 453,494,948,057,045,312/723,805,216.80
  6. Step 6: Final answer
    x = 626,542,801.20

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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.