Home / 448,492,769.40-672,739,154.10-440,934,497.40

Finding the Fourth Proportional to 448,492,769.40, 672,739,154.10 and 440,934,497.40

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Solution

The fourth proportional to 448,492,769.40, 672,739,154.10 and 440,934,497.40 is: 661,401,746.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,492,769.40 : 672,739,154.10 = 440,934,497.40 : x
  2. Step 2: Convert to fraction form
    448,492,769.40/672,739,154.10 = 440,934,497.40/x
  3. Step 3: Cross multiply
    448,492,769.40x = 672,739,154.10 × 440,934,497.40
  4. Step 4: Simplify right side
    448,492,769.40x = 296,633,900,794,384,640
  5. Step 5: Solve for x
    x = 296,633,900,794,384,640/448,492,769.40
  6. Step 6: Final answer
    x = 661,401,746.10

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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.