Home / 448,492,718.40-672,739,077.60-440,934,446.40

Finding the Fourth Proportional to 448,492,718.40, 672,739,077.60 and 440,934,446.40

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Solution

The fourth proportional to 448,492,718.40, 672,739,077.60 and 440,934,446.40 is: 661,401,669.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,492,718.40 : 672,739,077.60 = 440,934,446.40 : x
  2. Step 2: Convert to fraction form
    448,492,718.40/672,739,077.60 = 440,934,446.40/x
  3. Step 3: Cross multiply
    448,492,718.40x = 672,739,077.60 × 440,934,446.40
  4. Step 4: Simplify right side
    448,492,718.40x = 296,633,832,753,202,624
  5. Step 5: Solve for x
    x = 296,633,832,753,202,624/448,492,718.40
  6. Step 6: Final answer
    x = 661,401,669.60

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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.