Home / 457,564,769.79-622,991,899.55-456,111,942.96

Finding the Fourth Proportional to 457,564,769.79, 622,991,899.55 and 456,111,942.96

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Solution

The fourth proportional to 457,564,769.79, 622,991,899.55 and 456,111,942.96 is: 621,013,820.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,564,769.79 : 622,991,899.55 = 456,111,942.96 : x
  2. Step 2: Convert to fraction form
    457,564,769.79/622,991,899.55 = 456,111,942.96/x
  3. Step 3: Cross multiply
    457,564,769.79x = 622,991,899.55 × 456,111,942.96
  4. Step 4: Simplify right side
    457,564,769.79x = 284,154,045,749,811,072
  5. Step 5: Solve for x
    x = 284,154,045,749,811,072/457,564,769.79
  6. Step 6: Final answer
    x = 621,013,820.36

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.