Home / 1,419,942,638.98-2,130,142,829.02-437,368,721.86

Finding the Fourth Proportional to 1,419,942,638.98, 2,130,142,829.02 and 437,368,721.86

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Solution

The fourth proportional to 1,419,942,638.98, 2,130,142,829.02 and 437,368,721.86 is: 656,123,579.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,419,942,638.98 : 2,130,142,829.02 = 437,368,721.86 : x
  2. Step 2: Convert to fraction form
    1,419,942,638.98/2,130,142,829.02 = 437,368,721.86/x
  3. Step 3: Cross multiply
    1,419,942,638.98x = 2,130,142,829.02 × 437,368,721.86
  4. Step 4: Simplify right side
    1,419,942,638.98x = 931,657,846,507,721,984
  5. Step 5: Solve for x
    x = 931,657,846,507,721,984/1,419,942,638.98
  6. Step 6: Final answer
    x = 656,123,579.17

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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.