Home / 373,205,718-514,960,117.92-216,536,911.20

Finding the Fourth Proportional to 373,205,718, 514,960,117.92 and 216,536,911.20

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Solution

The fourth proportional to 373,205,718, 514,960,117.92 and 216,536,911.20 is: 298,783,935.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,205,718 : 514,960,117.92 = 216,536,911.20 : x
  2. Step 2: Convert to fraction form
    373,205,718/514,960,117.92 = 216,536,911.20/x
  3. Step 3: Cross multiply
    373,205,718x = 514,960,117.92 × 216,536,911.20
  4. Step 4: Simplify right side
    373,205,718x = 111,507,873,325,584,560
  5. Step 5: Solve for x
    x = 111,507,873,325,584,560/373,205,718
  6. Step 6: Final answer
    x = 298,783,935.90

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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.