Home / 641,934,675.68-885,963,429.60-359,696,202.08

Finding the Fourth Proportional to 641,934,675.68, 885,963,429.60 and 359,696,202.08

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Solution

The fourth proportional to 641,934,675.68, 885,963,429.60 and 359,696,202.08 is: 496,433,193.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,934,675.68 : 885,963,429.60 = 359,696,202.08 : x
  2. Step 2: Convert to fraction form
    641,934,675.68/885,963,429.60 = 359,696,202.08/x
  3. Step 3: Cross multiply
    641,934,675.68x = 885,963,429.60 × 359,696,202.08
  4. Step 4: Simplify right side
    641,934,675.68x = 318,677,680,808,891,456
  5. Step 5: Solve for x
    x = 318,677,680,808,891,456/641,934,675.68
  6. Step 6: Final answer
    x = 496,433,193.10

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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.