Home / 421,004,235.63-580,921,301.51-242,353,591.05

Finding the Fourth Proportional to 421,004,235.63, 580,921,301.51 and 242,353,591.05

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Solution

The fourth proportional to 421,004,235.63, 580,921,301.51 and 242,353,591.05 is: 334,410,800.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,004,235.63 : 580,921,301.51 = 242,353,591.05 : x
  2. Step 2: Convert to fraction form
    421,004,235.63/580,921,301.51 = 242,353,591.05/x
  3. Step 3: Cross multiply
    421,004,235.63x = 580,921,301.51 × 242,353,591.05
  4. Step 4: Simplify right side
    421,004,235.63x = 140,788,363,534,271,904
  5. Step 5: Solve for x
    x = 140,788,363,534,271,904/421,004,235.63
  6. Step 6: Final answer
    x = 334,410,800.70

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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.