Home / 137,128,048.67-205,688,086.29-40,086,036.34

Finding the Fourth Proportional to 137,128,048.67, 205,688,086.29 and 40,086,036.34

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Solution

The fourth proportional to 137,128,048.67, 205,688,086.29 and 40,086,036.34 is: 60,127,889.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,128,048.67 : 205,688,086.29 = 40,086,036.34 : x
  2. Step 2: Convert to fraction form
    137,128,048.67/205,688,086.29 = 40,086,036.34/x
  3. Step 3: Cross multiply
    137,128,048.67x = 205,688,086.29 × 40,086,036.34
  4. Step 4: Simplify right side
    137,128,048.67x = 8,245,220,101,211,775
  5. Step 5: Solve for x
    x = 8,245,220,101,211,775/137,128,048.67
  6. Step 6: Final answer
    x = 60,127,889.09

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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.