Home / 455,544,005.10-683,316,007.65-209,900,165.10

Finding the Fourth Proportional to 455,544,005.10, 683,316,007.65 and 209,900,165.10

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Solution

The fourth proportional to 455,544,005.10, 683,316,007.65 and 209,900,165.10 is: 314,850,247.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,544,005.10 : 683,316,007.65 = 209,900,165.10 : x
  2. Step 2: Convert to fraction form
    455,544,005.10/683,316,007.65 = 209,900,165.10/x
  3. Step 3: Cross multiply
    455,544,005.10x = 683,316,007.65 × 209,900,165.10
  4. Step 4: Simplify right side
    455,544,005.10x = 143,428,142,821,207,856
  5. Step 5: Solve for x
    x = 143,428,142,821,207,856/455,544,005.10
  6. Step 6: Final answer
    x = 314,850,247.65

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Double scale
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Similar ratio
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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.