Home / 291,267,780.10-436,607,737.35-145,477,111.30

Finding the Fourth Proportional to 291,267,780.10, 436,607,737.35 and 145,477,111.30

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Solution

The fourth proportional to 291,267,780.10, 436,607,737.35 and 145,477,111.30 is: 218,068,858.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,267,780.10 : 436,607,737.35 = 145,477,111.30 : x
  2. Step 2: Convert to fraction form
    291,267,780.10/436,607,737.35 = 145,477,111.30/x
  3. Step 3: Cross multiply
    291,267,780.10x = 436,607,737.35 × 145,477,111.30
  4. Step 4: Simplify right side
    291,267,780.10x = 63,516,432,400,907,128
  5. Step 5: Solve for x
    x = 63,516,432,400,907,128/291,267,780.10
  6. Step 6: Final answer
    x = 218,068,858.76

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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.