Home / 869,943,109.20-1,304,914,663.80-295,514,437.20

Finding the Fourth Proportional to 869,943,109.20, 1,304,914,663.80 and 295,514,437.20

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Solution

The fourth proportional to 869,943,109.20, 1,304,914,663.80 and 295,514,437.20 is: 443,271,655.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,943,109.20 : 1,304,914,663.80 = 295,514,437.20 : x
  2. Step 2: Convert to fraction form
    869,943,109.20/1,304,914,663.80 = 295,514,437.20/x
  3. Step 3: Cross multiply
    869,943,109.20x = 1,304,914,663.80 × 295,514,437.20
  4. Step 4: Simplify right side
    869,943,109.20x = 385,621,122,466,884,160
  5. Step 5: Solve for x
    x = 385,621,122,466,884,160/869,943,109.20
  6. Step 6: Final answer
    x = 443,271,655.80

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Double scale
Find fourth proportional to 869,943,110.20, 1,304,914,665.30 and 295,514,438.20
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1.5x scale

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.