Home / 289,518,203.40-399,533,257.17-165,782,795.40

Finding the Fourth Proportional to 289,518,203.40, 399,533,257.17 and 165,782,795.40

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Solution

The fourth proportional to 289,518,203.40, 399,533,257.17 and 165,782,795.40 is: 228,779,190.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,518,203.40 : 399,533,257.17 = 165,782,795.40 : x
  2. Step 2: Convert to fraction form
    289,518,203.40/399,533,257.17 = 165,782,795.40/x
  3. Step 3: Cross multiply
    289,518,203.40x = 399,533,257.17 × 165,782,795.40
  4. Step 4: Simplify right side
    289,518,203.40x = 66,235,740,228,909,696
  5. Step 5: Solve for x
    x = 66,235,740,228,909,696/289,518,203.40
  6. Step 6: Final answer
    x = 228,779,190.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.