Home / 345,134,421.40-517,701,632.10-313,893,563.80

Finding the Fourth Proportional to 345,134,421.40, 517,701,632.10 and 313,893,563.80

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Solution

The fourth proportional to 345,134,421.40, 517,701,632.10 and 313,893,563.80 is: 470,840,345.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,134,421.40 : 517,701,632.10 = 313,893,563.80 : x
  2. Step 2: Convert to fraction form
    345,134,421.40/517,701,632.10 = 313,893,563.80/x
  3. Step 3: Cross multiply
    345,134,421.40x = 517,701,632.10 × 313,893,563.80
  4. Step 4: Simplify right side
    345,134,421.40x = 162,503,210,284,945,504
  5. Step 5: Solve for x
    x = 162,503,210,284,945,504/345,134,421.40
  6. Step 6: Final answer
    x = 470,840,345.70

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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.