Home / 1,091,920,512.30-1,637,880,768.45-354,988,992.30

Finding the Fourth Proportional to 1,091,920,512.30, 1,637,880,768.45 and 354,988,992.30

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Solution

The fourth proportional to 1,091,920,512.30, 1,637,880,768.45 and 354,988,992.30 is: 532,483,488.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091,920,512.30 : 1,637,880,768.45 = 354,988,992.30 : x
  2. Step 2: Convert to fraction form
    1,091,920,512.30/1,637,880,768.45 = 354,988,992.30/x
  3. Step 3: Cross multiply
    1,091,920,512.30x = 1,637,880,768.45 × 354,988,992.30
  4. Step 4: Simplify right side
    1,091,920,512.30x = 581,429,643,499,615,232
  5. Step 5: Solve for x
    x = 581,429,643,499,615,232/1,091,920,512.30
  6. Step 6: Final answer
    x = 532,483,488.45

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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.