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Finding the Fourth Proportional to 205,239,776,478.30, 287,727,507,890.10 and 205,239,776,478.30

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Solution

The fourth proportional to 205,239,776,478.30, 287,727,507,890.10 and 205,239,776,478.30 is: 287,727,507,890.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,239,776,478.30 : 287,727,507,890.10 = 205,239,776,478.30 : x
  2. Step 2: Convert to fraction form
    205,239,776,478.30/287,727,507,890.10 = 205,239,776,478.30/x
  3. Step 3: Cross multiply
    205,239,776,478.30x = 287,727,507,890.10 × 205,239,776,478.30
  4. Step 4: Simplify right side
    205,239,776,478.30x = 59,053,129,406,022,416,334,848
  5. Step 5: Solve for x
    x = 59,053,129,406,022,416,334,848/205,239,776,478.30
  6. Step 6: Final answer
    x = 287,727,507,890.10

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.