Home / 990,834,975.60-1,486,252,463.40-408,269,351.40

Finding the Fourth Proportional to 990,834,975.60, 1,486,252,463.40 and 408,269,351.40

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Solution

The fourth proportional to 990,834,975.60, 1,486,252,463.40 and 408,269,351.40 is: 612,404,027.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,834,975.60 : 1,486,252,463.40 = 408,269,351.40 : x
  2. Step 2: Convert to fraction form
    990,834,975.60/1,486,252,463.40 = 408,269,351.40/x
  3. Step 3: Cross multiply
    990,834,975.60x = 1,486,252,463.40 × 408,269,351.40
  4. Step 4: Simplify right side
    990,834,975.60x = 606,791,329,248,970,240
  5. Step 5: Solve for x
    x = 606,791,329,248,970,240/990,834,975.60
  6. Step 6: Final answer
    x = 612,404,027.10

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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.