Home / 1,170,078,428.10-1,755,117,642.15-393,465,980.10

Finding the Fourth Proportional to 1,170,078,428.10, 1,755,117,642.15 and 393,465,980.10

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Solution

The fourth proportional to 1,170,078,428.10, 1,755,117,642.15 and 393,465,980.10 is: 590,198,970.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,170,078,428.10 : 1,755,117,642.15 = 393,465,980.10 : x
  2. Step 2: Convert to fraction form
    1,170,078,428.10/1,755,117,642.15 = 393,465,980.10/x
  3. Step 3: Cross multiply
    1,170,078,428.10x = 1,755,117,642.15 × 393,465,980.10
  4. Step 4: Simplify right side
    1,170,078,428.10x = 690,579,083,259,350,912
  5. Step 5: Solve for x
    x = 690,579,083,259,350,912/1,170,078,428.10
  6. Step 6: Final answer
    x = 590,198,970.15

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Half scale
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Double scale
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Similar ratio
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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.