Home / 1,057,248,107.20-1,585,872,160.80-643,999,585.60

Finding the Fourth Proportional to 1,057,248,107.20, 1,585,872,160.80 and 643,999,585.60

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Solution

The fourth proportional to 1,057,248,107.20, 1,585,872,160.80 and 643,999,585.60 is: 965,999,378.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,057,248,107.20 : 1,585,872,160.80 = 643,999,585.60 : x
  2. Step 2: Convert to fraction form
    1,057,248,107.20/1,585,872,160.80 = 643,999,585.60/x
  3. Step 3: Cross multiply
    1,057,248,107.20x = 1,585,872,160.80 × 643,999,585.60
  4. Step 4: Simplify right side
    1,057,248,107.20x = 1,021,301,014,369,776,512
  5. Step 5: Solve for x
    x = 1,021,301,014,369,776,512/1,057,248,107.20
  6. Step 6: Final answer
    x = 965,999,378.40

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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.