Home / 618,726,288.14-853,830,438.55-340,267,811.64

Finding the Fourth Proportional to 618,726,288.14, 853,830,438.55 and 340,267,811.64

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Solution

The fourth proportional to 618,726,288.14, 853,830,438.55 and 340,267,811.64 is: 469,563,069.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,726,288.14 : 853,830,438.55 = 340,267,811.64 : x
  2. Step 2: Convert to fraction form
    618,726,288.14/853,830,438.55 = 340,267,811.64/x
  3. Step 3: Cross multiply
    618,726,288.14x = 853,830,438.55 × 340,267,811.64
  4. Step 4: Simplify right side
    618,726,288.14x = 290,531,014,837,029,952
  5. Step 5: Solve for x
    x = 290,531,014,837,029,952/618,726,288.14
  6. Step 6: Final answer
    x = 469,563,069.17

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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.