Home / 765,249,743.40-1,147,874,615.10-328,476,100.20

Finding the Fourth Proportional to 765,249,743.40, 1,147,874,615.10 and 328,476,100.20

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Solution

The fourth proportional to 765,249,743.40, 1,147,874,615.10 and 328,476,100.20 is: 492,714,150.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,249,743.40 : 1,147,874,615.10 = 328,476,100.20 : x
  2. Step 2: Convert to fraction form
    765,249,743.40/1,147,874,615.10 = 328,476,100.20/x
  3. Step 3: Cross multiply
    765,249,743.40x = 1,147,874,615.10 × 328,476,100.20
  4. Step 4: Simplify right side
    765,249,743.40x = 377,049,377,086,624,000
  5. Step 5: Solve for x
    x = 377,049,377,086,624,000/765,249,743.40
  6. Step 6: Final answer
    x = 492,714,150.30

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Double scale
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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.