Home / 442,868,139.10-664,302,208.65-440,317,222.30

Finding the Fourth Proportional to 442,868,139.10, 664,302,208.65 and 440,317,222.30

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Solution

The fourth proportional to 442,868,139.10, 664,302,208.65 and 440,317,222.30 is: 660,475,833.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,868,139.10 : 664,302,208.65 = 440,317,222.30 : x
  2. Step 2: Convert to fraction form
    442,868,139.10/664,302,208.65 = 440,317,222.30/x
  3. Step 3: Cross multiply
    442,868,139.10x = 664,302,208.65 × 440,317,222.30
  4. Step 4: Simplify right side
    442,868,139.10x = 292,503,703,280,523,008
  5. Step 5: Solve for x
    x = 292,503,703,280,523,008/442,868,139.10
  6. Step 6: Final answer
    x = 660,475,833.45

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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.