Home / 665,341,958.40-998,012,937.60-407,061,632.40

Finding the Fourth Proportional to 665,341,958.40, 998,012,937.60 and 407,061,632.40

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Solution

The fourth proportional to 665,341,958.40, 998,012,937.60 and 407,061,632.40 is: 610,592,448.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,341,958.40 : 998,012,937.60 = 407,061,632.40 : x
  2. Step 2: Convert to fraction form
    665,341,958.40/998,012,937.60 = 407,061,632.40/x
  3. Step 3: Cross multiply
    665,341,958.40x = 998,012,937.60 × 407,061,632.40
  4. Step 4: Simplify right side
    665,341,958.40x = 406,252,775,535,775,296
  5. Step 5: Solve for x
    x = 406,252,775,535,775,296/665,341,958.40
  6. Step 6: Final answer
    x = 610,592,448.60

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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.