Home / 138,735,166.86-191,430,196.84-79,169,266.67

Finding the Fourth Proportional to 138,735,166.86, 191,430,196.84 and 79,169,266.67

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Solution

The fourth proportional to 138,735,166.86, 191,430,196.84 and 79,169,266.67 is: 109,239,702.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,735,166.86 : 191,430,196.84 = 79,169,266.67 : x
  2. Step 2: Convert to fraction form
    138,735,166.86/191,430,196.84 = 79,169,266.67/x
  3. Step 3: Cross multiply
    138,735,166.86x = 191,430,196.84 × 79,169,266.67
  4. Step 4: Simplify right side
    138,735,166.86x = 15,155,388,302,716,418
  5. Step 5: Solve for x
    x = 15,155,388,302,716,418/138,735,166.86
  6. Step 6: Final answer
    x = 109,239,702.13

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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.