Home / 153,912,384.29-212,399,295.22-83,348,116.39

Finding the Fourth Proportional to 153,912,384.29, 212,399,295.22 and 83,348,116.39

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Solution

The fourth proportional to 153,912,384.29, 212,399,295.22 and 83,348,116.39 is: 115,020,511.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,912,384.29 : 212,399,295.22 = 83,348,116.39 : x
  2. Step 2: Convert to fraction form
    153,912,384.29/212,399,295.22 = 83,348,116.39/x
  3. Step 3: Cross multiply
    153,912,384.29x = 212,399,295.22 × 83,348,116.39
  4. Step 4: Simplify right side
    153,912,384.29x = 17,703,081,179,520,214
  5. Step 5: Solve for x
    x = 17,703,081,179,520,214/153,912,384.29
  6. Step 6: Final answer
    x = 115,020,511.58

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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.