Home / 661,315,120,012.08-991,166,788,751.40-342,785,710,505.52

Finding the Fourth Proportional to 661,315,120,012.08, 991,166,788,751.40 and 342,785,710,505.52

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Solution

The fourth proportional to 661,315,120,012.08, 991,166,788,751.40 and 342,785,710,505.52 is: 513,760,840,528.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,315,120,012.08 : 991,166,788,751.40 = 342,785,710,505.52 : x
  2. Step 2: Convert to fraction form
    661,315,120,012.08/991,166,788,751.40 = 342,785,710,505.52/x
  3. Step 3: Cross multiply
    661,315,120,012.08x = 991,166,788,751.40 × 342,785,710,505.52
  4. Step 4: Simplify right side
    661,315,120,012.08x = 339,757,811,911,623,293,534,208
  5. Step 5: Solve for x
    x = 339,757,811,911,623,293,534,208/661,315,120,012.08
  6. Step 6: Final answer
    x = 513,760,840,528.52

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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.