Home / 448,207,718.40-672,311,577.60-316,693,785.60

Finding the Fourth Proportional to 448,207,718.40, 672,311,577.60 and 316,693,785.60

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Solution

The fourth proportional to 448,207,718.40, 672,311,577.60 and 316,693,785.60 is: 475,040,678.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,207,718.40 : 672,311,577.60 = 316,693,785.60 : x
  2. Step 2: Convert to fraction form
    448,207,718.40/672,311,577.60 = 316,693,785.60/x
  3. Step 3: Cross multiply
    448,207,718.40x = 672,311,577.60 × 316,693,785.60
  4. Step 4: Simplify right side
    448,207,718.40x = 212,916,898,612,852,192
  5. Step 5: Solve for x
    x = 212,916,898,612,852,192/448,207,718.40
  6. Step 6: Final answer
    x = 475,040,678.40

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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.