Home / 475,183,133.80-712,207,830.30-426,432,279.40

Finding the Fourth Proportional to 475,183,133.80, 712,207,830.30 and 426,432,279.40

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Solution

The fourth proportional to 475,183,133.80, 712,207,830.30 and 426,432,279.40 is: 639,139,706.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,183,133.80 : 712,207,830.30 = 426,432,279.40 : x
  2. Step 2: Convert to fraction form
    475,183,133.80/712,207,830.30 = 426,432,279.40/x
  3. Step 3: Cross multiply
    475,183,133.80x = 712,207,830.30 × 426,432,279.40
  4. Step 4: Simplify right side
    475,183,133.80x = 303,708,408,481,357,376
  5. Step 5: Solve for x
    x = 303,708,408,481,357,376/475,183,133.80
  6. Step 6: Final answer
    x = 639,139,706.10

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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.