Home / 181,376,985.20-272,100,907.20-72,183,574.40

Finding the Fourth Proportional to 181,376,985.20, 272,100,907.20 and 72,183,574.40

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Solution

The fourth proportional to 181,376,985.20, 272,100,907.20 and 72,183,574.40 is: 108,289,461.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,376,985.20 : 272,100,907.20 = 72,183,574.40 : x
  2. Step 2: Convert to fraction form
    181,376,985.20/272,100,907.20 = 72,183,574.40/x
  3. Step 3: Cross multiply
    181,376,985.20x = 272,100,907.20 × 72,183,574.40
  4. Step 4: Simplify right side
    181,376,985.20x = 19,641,216,079,178,696
  5. Step 5: Solve for x
    x = 19,641,216,079,178,696/181,376,985.20
  6. Step 6: Final answer
    x = 108,289,461.63

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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.