Home / 291,267,960.60-436,608,008.10-145,477,291.80

Finding the Fourth Proportional to 291,267,960.60, 436,608,008.10 and 145,477,291.80

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Solution

The fourth proportional to 291,267,960.60, 436,608,008.10 and 145,477,291.80 is: 218,069,129.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,267,960.60 : 436,608,008.10 = 145,477,291.80 : x
  2. Step 2: Convert to fraction form
    291,267,960.60/436,608,008.10 = 145,477,291.80/x
  3. Step 3: Cross multiply
    291,267,960.60x = 436,608,008.10 × 145,477,291.80
  4. Step 4: Simplify right side
    291,267,960.60x = 63,516,550,596,580,472
  5. Step 5: Solve for x
    x = 63,516,550,596,580,472/291,267,960.60
  6. Step 6: Final answer
    x = 218,069,129.42

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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.