Home / 638,648,280.47-957,980,097.11-250,653,835.19

Finding the Fourth Proportional to 638,648,280.47, 957,980,097.11 and 250,653,835.19

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Solution

The fourth proportional to 638,648,280.47, 957,980,097.11 and 250,653,835.19 is: 375,983,765.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,648,280.47 : 957,980,097.11 = 250,653,835.19 : x
  2. Step 2: Convert to fraction form
    638,648,280.47/957,980,097.11 = 250,653,835.19/x
  3. Step 3: Cross multiply
    638,648,280.47x = 957,980,097.11 × 250,653,835.19
  4. Step 4: Simplify right side
    638,648,280.47x = 240,121,385,379,331,712
  5. Step 5: Solve for x
    x = 240,121,385,379,331,712/638,648,280.47
  6. Step 6: Final answer
    x = 375,983,765.59

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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.