Home / 30,342,945,674.80-45,514,418,512.20-12,892,407,281.20

Finding the Fourth Proportional to 30,342,945,674.80, 45,514,418,512.20 and 12,892,407,281.20

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Solution

The fourth proportional to 30,342,945,674.80, 45,514,418,512.20 and 12,892,407,281.20 is: 19,338,610,921.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,342,945,674.80 : 45,514,418,512.20 = 12,892,407,281.20 : x
  2. Step 2: Convert to fraction form
    30,342,945,674.80/45,514,418,512.20 = 12,892,407,281.20/x
  3. Step 3: Cross multiply
    30,342,945,674.80x = 45,514,418,512.20 × 12,892,407,281.20
  4. Step 4: Simplify right side
    30,342,945,674.80x = 586,790,420,626,271,371,264
  5. Step 5: Solve for x
    x = 586,790,420,626,271,371,264/30,342,945,674.80
  6. Step 6: Final answer
    x = 19,338,610,921.80

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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.