Home / 92,736,007.20-139,104,010.80-77,731,437.60

Finding the Fourth Proportional to 92,736,007.20, 139,104,010.80 and 77,731,437.60

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Solution

The fourth proportional to 92,736,007.20, 139,104,010.80 and 77,731,437.60 is: 116,597,156.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,736,007.20 : 139,104,010.80 = 77,731,437.60 : x
  2. Step 2: Convert to fraction form
    92,736,007.20/139,104,010.80 = 77,731,437.60/x
  3. Step 3: Cross multiply
    92,736,007.20x = 139,104,010.80 × 77,731,437.60
  4. Step 4: Simplify right side
    92,736,007.20x = 10,812,754,735,409,926
  5. Step 5: Solve for x
    x = 10,812,754,735,409,926/92,736,007.20
  6. Step 6: Final answer
    x = 116,597,156.40

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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.