Home / 291,478,369.20-437,154,568.20-127,715,809.20

Finding the Fourth Proportional to 291,478,369.20, 437,154,568.20 and 127,715,809.20

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Solution

The fourth proportional to 291,478,369.20, 437,154,568.20 and 127,715,809.20 is: 191,546,115.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,478,369.20 : 437,154,568.20 = 127,715,809.20 : x
  2. Step 2: Convert to fraction form
    291,478,369.20/437,154,568.20 = 127,715,809.20/x
  3. Step 3: Cross multiply
    291,478,369.20x = 437,154,568.20 × 127,715,809.20
  4. Step 4: Simplify right side
    291,478,369.20x = 55,831,549,423,139,584
  5. Step 5: Solve for x
    x = 55,831,549,423,139,584/291,478,369.20
  6. Step 6: Final answer
    x = 191,546,115.67

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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.