Home / 878,562,679.15-1,316,917,485.24-288,198,759.70

Finding the Fourth Proportional to 878,562,679.15, 1,316,917,485.24 and 288,198,759.70

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Solution

The fourth proportional to 878,562,679.15, 1,316,917,485.24 and 288,198,759.70 is: 431,994,204.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,562,679.15 : 1,316,917,485.24 = 288,198,759.70 : x
  2. Step 2: Convert to fraction form
    878,562,679.15/1,316,917,485.24 = 288,198,759.70/x
  3. Step 3: Cross multiply
    878,562,679.15x = 1,316,917,485.24 × 288,198,759.70
  4. Step 4: Simplify right side
    878,562,679.15x = 379,533,985,873,411,072
  5. Step 5: Solve for x
    x = 379,533,985,873,411,072/878,562,679.15
  6. Step 6: Final answer
    x = 431,994,204.72

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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.