Home / 639,822,878.35-882,955,356.95-346,467,446.35

Finding the Fourth Proportional to 639,822,878.35, 882,955,356.95 and 346,467,446.35

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Solution

The fourth proportional to 639,822,878.35, 882,955,356.95 and 346,467,446.35 is: 478,124,959.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,822,878.35 : 882,955,356.95 = 346,467,446.35 : x
  2. Step 2: Convert to fraction form
    639,822,878.35/882,955,356.95 = 346,467,446.35/x
  3. Step 3: Cross multiply
    639,822,878.35x = 882,955,356.95 × 346,467,446.35
  4. Step 4: Simplify right side
    639,822,878.35x = 305,915,287,762,171,072
  5. Step 5: Solve for x
    x = 305,915,287,762,171,072/639,822,878.35
  6. Step 6: Final answer
    x = 478,124,959.45

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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.