Home / 921,114,398.64-1,382,293,281.36-360,806,728.20

Finding the Fourth Proportional to 921,114,398.64, 1,382,293,281.36 and 360,806,728.20

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Solution

The fourth proportional to 921,114,398.64, 1,382,293,281.36 and 360,806,728.20 is: 541,453,609.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,114,398.64 : 1,382,293,281.36 = 360,806,728.20 : x
  2. Step 2: Convert to fraction form
    921,114,398.64/1,382,293,281.36 = 360,806,728.20/x
  3. Step 3: Cross multiply
    921,114,398.64x = 1,382,293,281.36 × 360,806,728.20
  4. Step 4: Simplify right side
    921,114,398.64x = 498,740,716,260,343,616
  5. Step 5: Solve for x
    x = 498,740,716,260,343,616/921,114,398.64
  6. Step 6: Final answer
    x = 541,453,609.88

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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.