Home / 1,119,852,095.40-1,679,778,143.10-420,342,879.15

Finding the Fourth Proportional to 1,119,852,095.40, 1,679,778,143.10 and 420,342,879.15

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Solution

The fourth proportional to 1,119,852,095.40, 1,679,778,143.10 and 420,342,879.15 is: 630,514,318.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,852,095.40 : 1,679,778,143.10 = 420,342,879.15 : x
  2. Step 2: Convert to fraction form
    1,119,852,095.40/1,679,778,143.10 = 420,342,879.15/x
  3. Step 3: Cross multiply
    1,119,852,095.40x = 1,679,778,143.10 × 420,342,879.15
  4. Step 4: Simplify right side
    1,119,852,095.40x = 706,082,781,003,894,656
  5. Step 5: Solve for x
    x = 706,082,781,003,894,656/1,119,852,095.40
  6. Step 6: Final answer
    x = 630,514,318.73

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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.