Home / 77,792,813.80-107,354,047.57-42,985,199.77

Finding the Fourth Proportional to 77,792,813.80, 107,354,047.57 and 42,985,199.77

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Solution

The fourth proportional to 77,792,813.80, 107,354,047.57 and 42,985,199.77 is: 59,319,556.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,792,813.80 : 107,354,047.57 = 42,985,199.77 : x
  2. Step 2: Convert to fraction form
    77,792,813.80/107,354,047.57 = 42,985,199.77/x
  3. Step 3: Cross multiply
    77,792,813.80x = 107,354,047.57 × 42,985,199.77
  4. Step 4: Simplify right side
    77,792,813.80x = 4,614,635,180,538,685
  5. Step 5: Solve for x
    x = 4,614,635,180,538,685/77,792,813.80
  6. Step 6: Final answer
    x = 59,319,556.08

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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.