Home / 72,261,970.80-108,357,089.40-26,202,001.20

Finding the Fourth Proportional to 72,261,970.80, 108,357,089.40 and 26,202,001.20

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Solution

The fourth proportional to 72,261,970.80, 108,357,089.40 and 26,202,001.20 is: 39,289,996.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,261,970.80 : 108,357,089.40 = 26,202,001.20 : x
  2. Step 2: Convert to fraction form
    72,261,970.80/108,357,089.40 = 26,202,001.20/x
  3. Step 3: Cross multiply
    72,261,970.80x = 108,357,089.40 × 26,202,001.20
  4. Step 4: Simplify right side
    72,261,970.80x = 2,839,172,586,487,307.50
  5. Step 5: Solve for x
    x = 2,839,172,586,487,307.50/72,261,970.80
  6. Step 6: Final answer
    x = 39,289,996.59

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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.