Home / 586,618,962.09-809,521,151.13-318,687,872.46

Finding the Fourth Proportional to 586,618,962.09, 809,521,151.13 and 318,687,872.46

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Solution

The fourth proportional to 586,618,962.09, 809,521,151.13 and 318,687,872.46 is: 439,782,192.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,618,962.09 : 809,521,151.13 = 318,687,872.46 : x
  2. Step 2: Convert to fraction form
    586,618,962.09/809,521,151.13 = 318,687,872.46/x
  3. Step 3: Cross multiply
    586,618,962.09x = 809,521,151.13 × 318,687,872.46
  4. Step 4: Simplify right side
    586,618,962.09x = 257,984,573,364,989,792
  5. Step 5: Solve for x
    x = 257,984,573,364,989,792/586,618,962.09
  6. Step 6: Final answer
    x = 439,782,192.59

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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.