Home / 376,462,510.74-519,533,883.72-209,198,147.40

Finding the Fourth Proportional to 376,462,510.74, 519,533,883.72 and 209,198,147.40

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Solution

The fourth proportional to 376,462,510.74, 519,533,883.72 and 209,198,147.40 is: 288,702,122.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,462,510.74 : 519,533,883.72 = 209,198,147.40 : x
  2. Step 2: Convert to fraction form
    376,462,510.74/519,533,883.72 = 209,198,147.40/x
  3. Step 3: Cross multiply
    376,462,510.74x = 519,533,883.72 × 209,198,147.40
  4. Step 4: Simplify right side
    376,462,510.74x = 108,685,525,985,751,024
  5. Step 5: Solve for x
    x = 108,685,525,985,751,024/376,462,510.74
  6. Step 6: Final answer
    x = 288,702,122.75

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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.