Home / 429,336,609.60-644,004,914.40-293,287,713.60

Finding the Fourth Proportional to 429,336,609.60, 644,004,914.40 and 293,287,713.60

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Solution

The fourth proportional to 429,336,609.60, 644,004,914.40 and 293,287,713.60 is: 439,931,570.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,336,609.60 : 644,004,914.40 = 293,287,713.60 : x
  2. Step 2: Convert to fraction form
    429,336,609.60/644,004,914.40 = 293,287,713.60/x
  3. Step 3: Cross multiply
    429,336,609.60x = 644,004,914.40 × 293,287,713.60
  4. Step 4: Simplify right side
    429,336,609.60x = 188,878,728,891,539,712
  5. Step 5: Solve for x
    x = 188,878,728,891,539,712/429,336,609.60
  6. Step 6: Final answer
    x = 439,931,570.40

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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.