Home / 856,105,102,821.72-1,283,309,423,072.80-402,011,133,852.18

Finding the Fourth Proportional to 856,105,102,821.72, 1,283,309,423,072.80 and 402,011,133,852.18

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Solution

The fourth proportional to 856,105,102,821.72, 1,283,309,423,072.80 and 402,011,133,852.18 is: 602,618,387,102.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,105,102,821.72 : 1,283,309,423,072.80 = 402,011,133,852.18 : x
  2. Step 2: Convert to fraction form
    856,105,102,821.72/1,283,309,423,072.80 = 402,011,133,852.18/x
  3. Step 3: Cross multiply
    856,105,102,821.72x = 1,283,309,423,072.80 × 402,011,133,852.18
  4. Step 4: Simplify right side
    856,105,102,821.72x = 515,904,676,252,683,308,367,872
  5. Step 5: Solve for x
    x = 515,904,676,252,683,308,367,872/856,105,102,821.72
  6. Step 6: Final answer
    x = 602,618,387,102.55

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Double scale
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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.