Home / 399,997,842,539.78-551,997,569,329.35-217,094,946,998.24

Finding the Fourth Proportional to 399,997,842,539.78, 551,997,569,329.35 and 217,094,946,998.24

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Solution

The fourth proportional to 399,997,842,539.78, 551,997,569,329.35 and 217,094,946,998.24 is: 299,591,323,532.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,997,842,539.78 : 551,997,569,329.35 = 217,094,946,998.24 : x
  2. Step 2: Convert to fraction form
    399,997,842,539.78/551,997,569,329.35 = 217,094,946,998.24/x
  3. Step 3: Cross multiply
    399,997,842,539.78x = 551,997,569,329.35 × 217,094,946,998.24
  4. Step 4: Simplify right side
    399,997,842,539.78x = 119,835,883,056,712,539,701,248
  5. Step 5: Solve for x
    x = 119,835,883,056,712,539,701,248/399,997,842,539.78
  6. Step 6: Final answer
    x = 299,591,323,532.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.