Home / 448,459,009.40-672,688,514.10-206,594,305.40

Finding the Fourth Proportional to 448,459,009.40, 672,688,514.10 and 206,594,305.40

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Solution

The fourth proportional to 448,459,009.40, 672,688,514.10 and 206,594,305.40 is: 309,891,458.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,459,009.40 : 672,688,514.10 = 206,594,305.40 : x
  2. Step 2: Convert to fraction form
    448,459,009.40/672,688,514.10 = 206,594,305.40/x
  3. Step 3: Cross multiply
    448,459,009.40x = 672,688,514.10 × 206,594,305.40
  4. Step 4: Simplify right side
    448,459,009.40x = 138,973,616,321,047,616
  5. Step 5: Solve for x
    x = 138,973,616,321,047,616/448,459,009.40
  6. Step 6: Final answer
    x = 309,891,458.10

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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.