Home / 1,455,360,020.10-2,183,040,030.15-420,254,669.70

Finding the Fourth Proportional to 1,455,360,020.10, 2,183,040,030.15 and 420,254,669.70

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Solution

The fourth proportional to 1,455,360,020.10, 2,183,040,030.15 and 420,254,669.70 is: 630,382,004.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,455,360,020.10 : 2,183,040,030.15 = 420,254,669.70 : x
  2. Step 2: Convert to fraction form
    1,455,360,020.10/2,183,040,030.15 = 420,254,669.70/x
  3. Step 3: Cross multiply
    1,455,360,020.10x = 2,183,040,030.15 × 420,254,669.70
  4. Step 4: Simplify right side
    1,455,360,020.10x = 917,432,766,812,566,272
  5. Step 5: Solve for x
    x = 917,432,766,812,566,272/1,455,360,020.10
  6. Step 6: Final answer
    x = 630,382,004.55

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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.