Home / 1,647,218,342.61-2,470,825,530.99-420,386,925.33

Finding the Fourth Proportional to 1,647,218,342.61, 2,470,825,530.99 and 420,386,925.33

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Solution

The fourth proportional to 1,647,218,342.61, 2,470,825,530.99 and 420,386,925.33 is: 630,579,881.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,647,218,342.61 : 2,470,825,530.99 = 420,386,925.33 : x
  2. Step 2: Convert to fraction form
    1,647,218,342.61/2,470,825,530.99 = 420,386,925.33/x
  3. Step 3: Cross multiply
    1,647,218,342.61x = 2,470,825,530.99 × 420,386,925.33
  4. Step 4: Simplify right side
    1,647,218,342.61x = 1,038,702,747,999,750,656
  5. Step 5: Solve for x
    x = 1,038,702,747,999,750,656/1,647,218,342.61
  6. Step 6: Final answer
    x = 630,579,881.93

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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.