Home / 169,490,438.60-254,313,847.02-77,402,406.92

Finding the Fourth Proportional to 169,490,438.60, 254,313,847.02 and 77,402,406.92

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Solution

The fourth proportional to 169,490,438.60, 254,313,847.02 and 77,402,406.92 is: 116,139,317.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,490,438.60 : 254,313,847.02 = 77,402,406.92 : x
  2. Step 2: Convert to fraction form
    169,490,438.60/254,313,847.02 = 77,402,406.92/x
  3. Step 3: Cross multiply
    169,490,438.60x = 254,313,847.02 × 77,402,406.92
  4. Step 4: Simplify right side
    169,490,438.60x = 19,684,503,872,432,672
  5. Step 5: Solve for x
    x = 19,684,503,872,432,672/169,490,438.60
  6. Step 6: Final answer
    x = 116,139,317.56

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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.