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Finding the Fourth Proportional to 559,872,728.80, 839,809,093.20 and 354,287,730.40

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Solution

The fourth proportional to 559,872,728.80, 839,809,093.20 and 354,287,730.40 is: 531,431,595.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,872,728.80 : 839,809,093.20 = 354,287,730.40 : x
  2. Step 2: Convert to fraction form
    559,872,728.80/839,809,093.20 = 354,287,730.40/x
  3. Step 3: Cross multiply
    559,872,728.80x = 839,809,093.20 × 354,287,730.40
  4. Step 4: Simplify right side
    559,872,728.80x = 297,534,057,599,110,080
  5. Step 5: Solve for x
    x = 297,534,057,599,110,080/559,872,728.80
  6. Step 6: Final answer
    x = 531,431,595.60

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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.