Home / 812,596,987.43-1,121,453,000.87-460,235,661.20

Finding the Fourth Proportional to 812,596,987.43, 1,121,453,000.87 and 460,235,661.20

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Solution

The fourth proportional to 812,596,987.43, 1,121,453,000.87 and 460,235,661.20 is: 635,164,382.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,596,987.43 : 1,121,453,000.87 = 460,235,661.20 : x
  2. Step 2: Convert to fraction form
    812,596,987.43/1,121,453,000.87 = 460,235,661.20/x
  3. Step 3: Cross multiply
    812,596,987.43x = 1,121,453,000.87 × 460,235,661.20
  4. Step 4: Simplify right side
    812,596,987.43x = 516,132,663,360,128,576
  5. Step 5: Solve for x
    x = 516,132,663,360,128,576/812,596,987.43
  6. Step 6: Final answer
    x = 635,164,382.03

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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.