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Finding the Fourth Proportional to 90,699,342,404.40, 126,685,213,750.80 and 90,699,342,404.40

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Solution

The fourth proportional to 90,699,342,404.40, 126,685,213,750.80 and 90,699,342,404.40 is: 126,685,213,750.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,699,342,404.40 : 126,685,213,750.80 = 90,699,342,404.40 : x
  2. Step 2: Convert to fraction form
    90,699,342,404.40/126,685,213,750.80 = 90,699,342,404.40/x
  3. Step 3: Cross multiply
    90,699,342,404.40x = 126,685,213,750.80 × 90,699,342,404.40
  4. Step 4: Simplify right side
    90,699,342,404.40x = 11,490,265,579,558,411,436,032
  5. Step 5: Solve for x
    x = 11,490,265,579,558,411,436,032/90,699,342,404.40
  6. Step 6: Final answer
    x = 126,685,213,750.80

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1.5x scale

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.