Home / 279,909,973.08-419,863,464.54-72,648,232.38

Finding the Fourth Proportional to 279,909,973.08, 419,863,464.54 and 72,648,232.38

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Solution

The fourth proportional to 279,909,973.08, 419,863,464.54 and 72,648,232.38 is: 108,971,960.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,909,973.08 : 419,863,464.54 = 72,648,232.38 : x
  2. Step 2: Convert to fraction form
    279,909,973.08/419,863,464.54 = 72,648,232.38/x
  3. Step 3: Cross multiply
    279,909,973.08x = 419,863,464.54 × 72,648,232.38
  4. Step 4: Simplify right side
    279,909,973.08x = 30,502,338,539,773,808
  5. Step 5: Solve for x
    x = 30,502,338,539,773,808/279,909,973.08
  6. Step 6: Final answer
    x = 108,971,960.53

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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.