Home / 661,992,685.32-913,549,902.12-383,695,633.62

Finding the Fourth Proportional to 661,992,685.32, 913,549,902.12 and 383,695,633.62

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Solution

The fourth proportional to 661,992,685.32, 913,549,902.12 and 383,695,633.62 is: 529,499,972.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,992,685.32 : 913,549,902.12 = 383,695,633.62 : x
  2. Step 2: Convert to fraction form
    661,992,685.32/913,549,902.12 = 383,695,633.62/x
  3. Step 3: Cross multiply
    661,992,685.32x = 913,549,902.12 × 383,695,633.62
  4. Step 4: Simplify right side
    661,992,685.32x = 350,525,108,537,422,400
  5. Step 5: Solve for x
    x = 350,525,108,537,422,400/661,992,685.32
  6. Step 6: Final answer
    x = 529,499,972.30

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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.