Home / 453,938,082.80-680,907,124.20-315,388,425.20

Finding the Fourth Proportional to 453,938,082.80, 680,907,124.20 and 315,388,425.20

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Solution

The fourth proportional to 453,938,082.80, 680,907,124.20 and 315,388,425.20 is: 473,082,637.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,938,082.80 : 680,907,124.20 = 315,388,425.20 : x
  2. Step 2: Convert to fraction form
    453,938,082.80/680,907,124.20 = 315,388,425.20/x
  3. Step 3: Cross multiply
    453,938,082.80x = 680,907,124.20 × 315,388,425.20
  4. Step 4: Simplify right side
    453,938,082.80x = 214,750,225,608,898,816
  5. Step 5: Solve for x
    x = 214,750,225,608,898,816/453,938,082.80
  6. Step 6: Final answer
    x = 473,082,637.80

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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.