Home / 101,318,938.70-139,820,633.66-54,909,192.67

Finding the Fourth Proportional to 101,318,938.70, 139,820,633.66 and 54,909,192.67

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Solution

The fourth proportional to 101,318,938.70, 139,820,633.66 and 54,909,192.67 is: 75,774,955.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,318,938.70 : 139,820,633.66 = 54,909,192.67 : x
  2. Step 2: Convert to fraction form
    101,318,938.70/139,820,633.66 = 54,909,192.67/x
  3. Step 3: Cross multiply
    101,318,938.70x = 139,820,633.66 × 54,909,192.67
  4. Step 4: Simplify right side
    101,318,938.70x = 7,677,438,112,666,148
  5. Step 5: Solve for x
    x = 7,677,438,112,666,148/101,318,938.70
  6. Step 6: Final answer
    x = 75,774,955.91

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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.