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Finding the Fourth Proportional to 298,971,653,272.40, 417,776,672,940.40 and 298,971,653,272.40

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Solution

The fourth proportional to 298,971,653,272.40, 417,776,672,940.40 and 298,971,653,272.40 is: 417,776,672,940.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,971,653,272.40 : 417,776,672,940.40 = 298,971,653,272.40 : x
  2. Step 2: Convert to fraction form
    298,971,653,272.40/417,776,672,940.40 = 298,971,653,272.40/x
  3. Step 3: Cross multiply
    298,971,653,272.40x = 417,776,672,940.40 × 298,971,653,272.40
  4. Step 4: Simplify right side
    298,971,653,272.40x = 124,903,382,607,634,148,360,192
  5. Step 5: Solve for x
    x = 124,903,382,607,634,148,360,192/298,971,653,272.40
  6. Step 6: Final answer
    x = 417,776,672,940.40

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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.