Home / 413,980,271.40-620,883,315.90-209,315,951.40

Finding the Fourth Proportional to 413,980,271.40, 620,883,315.90 and 209,315,951.40

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Solution

The fourth proportional to 413,980,271.40, 620,883,315.90 and 209,315,951.40 is: 313,929,892.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,980,271.40 : 620,883,315.90 = 209,315,951.40 : x
  2. Step 2: Convert to fraction form
    413,980,271.40/620,883,315.90 = 209,315,951.40/x
  3. Step 3: Cross multiply
    413,980,271.40x = 620,883,315.90 × 209,315,951.40
  4. Step 4: Simplify right side
    413,980,271.40x = 129,960,781,975,995,248
  5. Step 5: Solve for x
    x = 129,960,781,975,995,248/413,980,271.40
  6. Step 6: Final answer
    x = 313,929,892.21

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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.