Home / 696,890,475.82-961,911,940.89-455,521,513.60

Finding the Fourth Proportional to 696,890,475.82, 961,911,940.89 and 455,521,513.60

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Solution

The fourth proportional to 696,890,475.82, 961,911,940.89 and 455,521,513.60 is: 628,752,434.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,890,475.82 : 961,911,940.89 = 455,521,513.60 : x
  2. Step 2: Convert to fraction form
    696,890,475.82/961,911,940.89 = 455,521,513.60/x
  3. Step 3: Cross multiply
    696,890,475.82x = 961,911,940.89 × 455,521,513.60
  4. Step 4: Simplify right side
    696,890,475.82x = 438,171,583,264,126,528
  5. Step 5: Solve for x
    x = 438,171,583,264,126,528/696,890,475.82
  6. Step 6: Final answer
    x = 628,752,434.52

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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.