Home / 438,775,809.80-658,261,145.55-147,634,715.30

Finding the Fourth Proportional to 438,775,809.80, 658,261,145.55 and 147,634,715.30

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Solution

The fourth proportional to 438,775,809.80, 658,261,145.55 and 147,634,715.30 is: 221,484,855.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,775,809.80 : 658,261,145.55 = 147,634,715.30 : x
  2. Step 2: Convert to fraction form
    438,775,809.80/658,261,145.55 = 147,634,715.30/x
  3. Step 3: Cross multiply
    438,775,809.80x = 658,261,145.55 × 147,634,715.30
  4. Step 4: Simplify right side
    438,775,809.80x = 97,182,196,816,326,112
  5. Step 5: Solve for x
    x = 97,182,196,816,326,112/438,775,809.80
  6. Step 6: Final answer
    x = 221,484,855.47

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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.