Home / 664,398,152.36-916,895,672.48-382,140,140.34

Finding the Fourth Proportional to 664,398,152.36, 916,895,672.48 and 382,140,140.34

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Solution

The fourth proportional to 664,398,152.36, 916,895,672.48 and 382,140,140.34 is: 527,368,475.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,398,152.36 : 916,895,672.48 = 382,140,140.34 : x
  2. Step 2: Convert to fraction form
    664,398,152.36/916,895,672.48 = 382,140,140.34/x
  3. Step 3: Cross multiply
    664,398,152.36x = 916,895,672.48 × 382,140,140.34
  4. Step 4: Simplify right side
    664,398,152.36x = 350,382,640,958,645,888
  5. Step 5: Solve for x
    x = 350,382,640,958,645,888/664,398,152.36
  6. Step 6: Final answer
    x = 527,368,475.84

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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.