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Finding the Fourth Proportional to 448,459,505.70, 672,689,258.55 and 448,459,505.70

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Solution

The fourth proportional to 448,459,505.70, 672,689,258.55 and 448,459,505.70 is: 672,689,258.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,459,505.70 : 672,689,258.55 = 448,459,505.70 : x
  2. Step 2: Convert to fraction form
    448,459,505.70/672,689,258.55 = 448,459,505.70/x
  3. Step 3: Cross multiply
    448,459,505.70x = 672,689,258.55 × 448,459,505.70
  4. Step 4: Simplify right side
    448,459,505.70x = 301,673,892,379,032,448
  5. Step 5: Solve for x
    x = 301,673,892,379,032,448/448,459,505.70
  6. Step 6: Final answer
    x = 672,689,258.55

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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.