Home / 388,454,904,003.78-536,232,827,461.15-242,039,704,936.98

Finding the Fourth Proportional to 388,454,904,003.78, 536,232,827,461.15 and 242,039,704,936.98

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Solution

The fourth proportional to 388,454,904,003.78, 536,232,827,461.15 and 242,039,704,936.98 is: 334,117,638,877.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,454,904,003.78 : 536,232,827,461.15 = 242,039,704,936.98 : x
  2. Step 2: Convert to fraction form
    388,454,904,003.78/536,232,827,461.15 = 242,039,704,936.98/x
  3. Step 3: Cross multiply
    388,454,904,003.78x = 536,232,827,461.15 × 242,039,704,936.98
  4. Step 4: Simplify right side
    388,454,904,003.78x = 129,789,635,336,219,264,024,576
  5. Step 5: Solve for x
    x = 129,789,635,336,219,264,024,576/388,454,904,003.78
  6. Step 6: Final answer
    x = 334,117,638,877.73

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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.