Home / 559,872,927.20-839,809,390.80-287,271,250.40

Finding the Fourth Proportional to 559,872,927.20, 839,809,390.80 and 287,271,250.40

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Solution

The fourth proportional to 559,872,927.20, 839,809,390.80 and 287,271,250.40 is: 430,906,875.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,872,927.20 : 839,809,390.80 = 287,271,250.40 : x
  2. Step 2: Convert to fraction form
    559,872,927.20/839,809,390.80 = 287,271,250.40/x
  3. Step 3: Cross multiply
    559,872,927.20x = 839,809,390.80 × 287,271,250.40
  4. Step 4: Simplify right side
    559,872,927.20x = 241,253,093,792,778,208
  5. Step 5: Solve for x
    x = 241,253,093,792,778,208/559,872,927.20
  6. Step 6: Final answer
    x = 430,906,875.60

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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.