Home / 1,019,128,839.21-1,528,697,244.42-310,084,464.15

Finding the Fourth Proportional to 1,019,128,839.21, 1,528,697,244.42 and 310,084,464.15

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Solution

The fourth proportional to 1,019,128,839.21, 1,528,697,244.42 and 310,084,464.15 is: 465,127,908.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,019,128,839.21 : 1,528,697,244.42 = 310,084,464.15 : x
  2. Step 2: Convert to fraction form
    1,019,128,839.21/1,528,697,244.42 = 310,084,464.15/x
  3. Step 3: Cross multiply
    1,019,128,839.21x = 1,528,697,244.42 × 310,084,464.15
  4. Step 4: Simplify right side
    1,019,128,839.21x = 474,025,265,883,557,248
  5. Step 5: Solve for x
    x = 474,025,265,883,557,248/1,019,128,839.21
  6. Step 6: Final answer
    x = 465,127,908.90

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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.